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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.140 by root, Fri Jan 5 20:04:02 2007 UTC vs.
Revision 1.479 by root, Thu Oct 8 05:04:27 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict qw(vars subs);
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Storable;	30	use Socket;
		31	use EV;
9	use Opcode;	32	use Opcode;
10	use Safe;	33	use Safe;
11	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
12		36
		37	use Guard ();
13	use Coro 3.3 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
		53	use JSON::XS 2.01 ();
		54	use BDB ();
		55	use Data::Dumper;
20	use Digest::MD5;	56	use Digest::MD5;
21	use Fcntl;	57	use Fcntl;
		58	use YAML ();
22	use IO::AIO 2.31 ();	59	use IO::AIO ();
23	use YAML::Syck ();
24	use Time::HiRes;	60	use Time::HiRes;
		61	use Compress::LZF;
		62	use Digest::MD5 ();
25		63
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	64	AnyEvent::detect;
27		65
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	66	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	67	#
		68	$Storable::canonical = 1; # reduce rsync transfers
		69	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		70
31	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	71	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		72
		73	# make sure c-lzf reinitialises itself
		74	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		75	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		76
		77	# strictly for debugging
		78	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		79
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	80	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		81
35	our %COMMAND = ();	82	our %COMMAND = ();
36	our %COMMAND_TIME = ();	83	our %COMMAND_TIME = ();
		84
		85	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	86	our %EXTCMD = ();
		87	our %EXTICMD = ();
		88	our %EXT_CORO = (); # coroutines bound to extensions
		89	our %EXT_MAP = (); # pluggable maps
38		90
		91	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	92	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	93	our @REFLECT; # set by XS
		94	our %REFLECT; # set by us
41		95
42	our $TICK = MAX_TIME * 1e-6;	96	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	97	our $DATADIR = datadir;
		98	our $LIBDIR = "$DATADIR/ext";
		99	our $PODDIR = "$DATADIR/pod";
		100	our $MAPDIR = "$DATADIR/" . mapdir;
		101	our $LOCALDIR = localdir;
		102	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		103	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		104	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		105	our $RANDOMDIR = "$LOCALDIR/random";
		106	our $BDBDIR = "$LOCALDIR/db";
		107	our $PIDFILE = "$LOCALDIR/pid";
		108	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		109
		110	our %RESOURCE;
		111
		112	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		113	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	114	our $NEXT_TICK;
45	our $NOW;	115	our $USE_FSYNC = 1; # use fsync to write maps - default on
		116
		117	our $BDB_DEADLOCK_WATCHER;
		118	our $BDB_CHECKPOINT_WATCHER;
		119	our $BDB_TRICKLE_WATCHER;
		120	our $DB_ENV;
		121
		122	our @EXTRA_MODULES = qw(pod mapscript);
46		123
47	our %CFG;	124	our %CFG;
48		125
49	our $UPTIME; $UPTIME ||= time;	126	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	127	our $RUNTIME;
		128	our $NOW;
51		129
52	our %MAP; # all maps	130	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	131	our (%MAP, %MAP_LOADING ); # all maps
54	our $RANDOM_MAPS = cf::localdir . "/random";	132	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	133
		134	# used to convert map paths into valid unix filenames by replacing / by ∕
		135	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		136
		137	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		138	our $LOADAVG; # same thing, but with alpha-smoothing
		139	our $JITTER; # average jitter
		140	our $TICK_START; # for load detecting purposes
		141
		142	our @POST_INIT;
		143
		144	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		145	our $REALLY_UNLOOP; # never set to true, please :)
56		146
57	binmode STDOUT;	147	binmode STDOUT;
58	binmode STDERR;	148	binmode STDERR;
59		149
60	# read virtual server time, if available	150	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	151	unless ($RUNTIME || !-e $RUNTIMEFILE) {
62	open my $fh, "<", cf::localdir . "/runtime"	152	open my $fh, "<", $RUNTIMEFILE
63	or die "unable to read runtime file: $!";	153	or die "unable to read $RUNTIMEFILE file: $!";
64	$RUNTIME = <$fh> + 0.;	154	$RUNTIME = <$fh> + 0.;
65	}	155	}
66		156
67	mkdir cf::localdir;	157	eval "sub TICK() { $TICK } 1" or die;
68	mkdir cf::localdir . "/" . cf::playerdir;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		158
73	# a special map that is always available	159	mkdir $_
74	our $LINK_MAP;	160	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		161
75	our $EMERGENCY_POSITION;	162	our $EMERGENCY_POSITION;
		163
		164	sub cf::map::normalise;
		165
		166	#############################################################################
		167
		168	%REFLECT = ();
		169	for (@REFLECT) {
		170	my $reflect = JSON::XS::decode_json $_;
		171	$REFLECT{$reflect->{class}} = $reflect;
		172	}
76		173
77	#############################################################################	174	#############################################################################
78		175
79	=head2 GLOBAL VARIABLES	176	=head2 GLOBAL VARIABLES
80		177
…		…
87	=item $cf::RUNTIME	184	=item $cf::RUNTIME
88		185
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	186	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	187	every server tick.
91		188
92	=item $cf::LIBDIR	189	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		190	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		191	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		192
94	The perl library directory, where extensions and cf-specific modules can	193	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	194	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		195	unique-items directory, player file directory, random maps directory and
		196	database environment.
96		197
97	=item $cf::NOW	198	=item $cf::NOW
98		199
99	The time of the last (current) server tick.	200	The time of the last (current) server tick.
100		201
101	=item $cf::TICK	202	=item $cf::TICK
102		203
103	The interval between server ticks, in seconds.	204	The interval between server ticks, in seconds.
104		205
		206	=item $cf::LOADAVG
		207
		208	The current CPU load on the server (alpha-smoothed), as a value between 0
		209	(none) and 1 (overloaded), indicating how much time is spent on processing
		210	objects per tick. Healthy values are < 0.5.
		211
		212	=item $cf::LOAD
		213
		214	The raw value load value from the last tick.
		215
105	=item %cf::CFG	216	=item %cf::CFG
106		217
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	218	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	219	from wherever your confdir points to.
109		220
		221	=item cf::wait_for_tick, cf::wait_for_tick_begin
		222
		223	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		224	returns directly I<after> the tick processing (and consequently, can only wake one process
		225	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		226
		227	=item @cf::INVOKE_RESULTS
		228
		229	This array contains the results of the last C<invoke ()> call. When
		230	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		231	that call.
		232
		233	=item %cf::REFLECT
		234
		235	Contains, for each (C++) class name, a hash reference with information
		236	about object members (methods, scalars and arrays) and other metadata,
		237	which is useful for introspection.
		238
110	=back	239	=back
111		240
112	=cut	241	=cut
113		242
114	BEGIN {	243	$Coro::State::WARNHOOK = sub {
115	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	244	my $msg = join "", @_;
117	utf8::encode $msg;
118		245
119	$msg .= "\n"	246	$msg .= "\n"
120	unless $msg =~ /\n$/;	247	unless $msg =~ /\n$/;
121		248
		249	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		250
122	LOG llevError, "cfperl: $msg";	251	LOG llevError, $msg;
123	};	252	};
124	}	253
		254	$Coro::State::DIEHOOK = sub {
		255	return unless $^S eq 0; # "eq", not "=="
		256
		257	warn Carp::longmess $_[0];
		258
		259	if ($Coro::current == $Coro::main) {#d#
		260	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		261	return;#d#
		262	}#d#
		263
		264	# kill coroutine otherwise
		265	Coro::terminate
		266	};
125		267
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	268	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	269	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	270	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	271	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	272	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		273	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	274	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		275
133	# we bless all objects into (empty) derived classes to force a method lookup	276	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	277	# within the Safe compartment.
135	for my $pkg (qw(	278	for my $pkg (qw(
136	cf::global cf::attachable	279	cf::global cf::attachable
137	cf::object cf::object::player	280	cf::object cf::object::player
138	cf::client cf::player	281	cf::client cf::player
139	cf::arch cf::living	282	cf::arch cf::living
		283	cf::map cf::mapspace
140	cf::map cf::party cf::region	284	cf::party cf::region
141	)) {	285	)) {
142	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	286	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	287	}
145		288
146	$Event::DIED = sub {	289	$EV::DIED = sub {
147	warn "error in event callback: @_";	290	warn "error in event callback: @_";
148	};	291	};
149		292
150	my %ext_pkg;	293	#############################################################################
151	my @exts;
152	my @hook;
153		294
154	=head2 UTILITY FUNCTIONS	295	=head2 UTILITY FUNCTIONS
155		296
156	=over 4	297	=over 4
157		298
158	=cut	299	=item dumpval $ref
159		300
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	301	=cut
161		302
		303	sub dumpval {
		304	eval {
		305	local $SIG{__DIE__};
		306	my $d;
		307	if (1) {
		308	$d = new Data::Dumper([$_[0]], ["*var"]);
		309	$d->Terse(1);
		310	$d->Indent(2);
		311	$d->Quotekeys(0);
		312	$d->Useqq(1);
		313	#$d->Bless(...);
		314	$d->Seen($_[1]) if @_ > 1;
		315	$d = $d->Dump();
		316	}
		317	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		318	$d
		319	} || "[unable to dump $_[0]: '$@']";
		320	}
		321
162	=item $ref = cf::from_json $json	322	=item $ref = cf::decode_json $json
163		323
164	Converts a JSON string into the corresponding perl data structure.	324	Converts a JSON string into the corresponding perl data structure.
165		325
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	326	=item $json = cf::encode_json $ref
174		327
175	Converts a perl data structure into its JSON representation.	328	Converts a perl data structure into its JSON representation.
176		329
177	=cut	330	=cut
178		331
179	sub to_json($) {	332	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	333
181	JSON::Syck::Dump $_[0]	334	sub encode_json($) { $json_coder->encode ($_[0]) }
		335	sub decode_json($) { $json_coder->decode ($_[0]) }
		336
		337	=item cf::post_init { BLOCK }
		338
		339	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		340	but I<before> the server starts ticking again.
		341
		342	The cdoeblock will have a single boolean argument to indicate whether this
		343	is a reload or not.
		344
		345	=cut
		346
		347	sub post_init(&) {
		348	push @POST_INIT, shift;
182	}	349	}
183		350
184	=item cf::lock_wait $string	351	=item cf::lock_wait $string
185		352
186	Wait until the given lock is available. See cf::lock_acquire.	353	Wait until the given lock is available. See cf::lock_acquire.
187		354
188	=item my $lock = cf::lock_acquire $string	355	=item my $lock = cf::lock_acquire $string
189		356
190	Wait until the given lock is available and then acquires it and returns	357	Wait until the given lock is available and then acquires it and returns
191	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	358	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
192	for example when the coroutine gets canceled), the lock is automatically	359	for example when the coroutine gets canceled), the lock is automatically
193	returned.	360	returned.
194		361
		362	Locks are *not* recursive, locking from the same coro twice results in a
		363	deadlocked coro.
		364
195	Lock names should begin with a unique identifier (for example, cf::map::find	365	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	366	uses map_find and cf::map::load uses map_load).
197		367
198	=cut	368	=item $locked = cf::lock_active $string
199		369
200	our %LOCK;	370	Return true if the lock is currently active, i.e. somebody has locked it.
		371
		372	=cut
		373
		374	our $LOCKS = new Coro::SemaphoreSet;
201		375
202	sub lock_wait($) {	376	sub lock_wait($) {
203	my ($key) = @_;	377	$LOCKS->wait ($_[0]);
204
205	# wait for lock, if any
206	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;
209	}
210	}	378	}
211		379
212	sub lock_acquire($) {	380	sub lock_acquire($) {
213	my ($key) = @_;	381	$LOCKS->guard ($_[0])
		382	}
214		383
215	# wait, to be sure we are not locked	384	sub lock_active($) {
216	lock_wait $key;	385	$LOCKS->count ($_[0]) < 1
217
218	$LOCK{$key} = [];
219
220	Coro::guard {
221	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };
223	}
224	}	386	}
225		387
226	sub freeze_mainloop {	388	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	389	tick_inhibit_inc;
228		390
229	my $guard = Coro::guard { $TICK_WATCHER->start };	391	&Guard::guard (\&tick_inhibit_dec);
230	$TICK_WATCHER->stop;	392	}
231	$guard	393
		394	=item cf::periodic $interval, $cb
		395
		396	Like EV::periodic, but randomly selects a starting point so that the actions
		397	get spread over timer.
		398
		399	=cut
		400
		401	sub periodic($$) {
		402	my ($interval, $cb) = @_;
		403
		404	my $start = rand List::Util::min 180, $interval;
		405
		406	EV::periodic $start, $interval, 0, $cb
		407	}
		408
		409	=item cf::get_slot $time[, $priority[, $name]]
		410
		411	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		412	This call blocks and returns only when you have at least C<$time> seconds
		413	of cpu time till the next tick. The slot is only valid till the next cede.
		414
		415	The optional C<$name> can be used to identify the job to run. It might be
		416	used for statistical purposes and should identify the same time-class.
		417
		418	Useful for short background jobs.
		419
		420	=cut
		421
		422	our @SLOT_QUEUE;
		423	our $SLOT_QUEUE;
		424
		425	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		426	$SLOT_QUEUE = Coro::async {
		427	$Coro::current->desc ("timeslot manager");
		428
		429	my $signal = new Coro::Signal;
		430
		431	while () {
		432	next_job:
		433	my $avail = cf::till_tick;
		434	if ($avail > 0.01) {
		435	for (0 .. $#SLOT_QUEUE) {
		436	if ($SLOT_QUEUE[$_][0] < $avail) {
		437	my $job = splice @SLOT_QUEUE, $_, 1, ();
		438	$job->[2]->send;
		439	Coro::cede;
		440	goto next_job;
		441	}
		442	}
		443	}
		444
		445	if (@SLOT_QUEUE) {
		446	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		447	push @cf::WAIT_FOR_TICK, $signal;
		448	$signal->wait;
		449	} else {
		450	Coro::schedule;
		451	}
		452	}
		453	};
		454
		455	sub get_slot($;$$) {
		456	return if tick_inhibit || $Coro::current == $Coro::main;
		457
		458	my ($time, $pri, $name) = @_;
		459
		460	$time = $TICK * .6 if $time > $TICK * .6;
		461	my $sig = new Coro::Signal;
		462
		463	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		464	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		465	$SLOT_QUEUE->ready;
		466	$sig->wait;
232	}	467	}
233		468
234	=item cf::async { BLOCK }	469	=item cf::async { BLOCK }
235		470
236	Currently the same as Coro::async_pool, meaning you cannot use	471	Currently the same as Coro::async_pool, meaning you cannot use
…		…
241		476
242	BEGIN { *async = \&Coro::async_pool }	477	BEGIN { *async = \&Coro::async_pool }
243		478
244	=item cf::sync_job { BLOCK }	479	=item cf::sync_job { BLOCK }
245		480
246	The design of crossfire+ requires that the main coro ($Coro::main) is	481	The design of Deliantra requires that the main coroutine ($Coro::main)
247	always able to handle events or runnable, as crossfire+ is only partly	482	is always able to handle events or runnable, as Deliantra is only
248	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	483	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		484	acceptable.
249		485
250	If it must be done, put the blocking parts into C<sync_job>. This will run	486	If it must be done, put the blocking parts into C<sync_job>. This will run
251	the given BLOCK in another coroutine while waiting for the result. The	487	the given BLOCK in another coroutine while waiting for the result. The
252	server will be frozen during this time, so the block should either finish	488	server will be frozen during this time, so the block should either finish
253	fast or be very important.	489	fast or be very important.
…		…
256		492
257	sub sync_job(&) {	493	sub sync_job(&) {
258	my ($job) = @_;	494	my ($job) = @_;
259		495
260	if ($Coro::current == $Coro::main) {	496	if ($Coro::current == $Coro::main) {
		497	my $time = EV::time;
		498
261	# this is the main coro, too bad, we have to block	499	# this is the main coro, too bad, we have to block
262	# till the operation succeeds, freezing the server :/	500	# till the operation succeeds, freezing the server :/
263		501
264	# TODO: use suspend/resume instead	502	LOG llevError, Carp::longmess "sync job";#d#
265	# (but this is cancel-safe)	503
266	my $freeze_guard = freeze_mainloop;	504	my $freeze_guard = freeze_mainloop;
267		505
268	my $busy = 1;	506	my $busy = 1;
269	my @res;	507	my @res;
270		508
271	(async {	509	(async {
		510	$Coro::current->desc ("sync job coro");
272	@res = eval { $job->() };	511	@res = eval { $job->() };
273	warn $@ if $@;	512	warn $@ if $@;
274	undef $busy;	513	undef $busy;
275	})->prio (Coro::PRIO_MAX);	514	})->prio (Coro::PRIO_MAX);
276		515
277	while ($busy) {	516	while ($busy) {
278	unless (Coro::cede) {	517	if (Coro::nready) {
279	Coro::nready ? Event::one_event 0 : Event::one_event;
280	Coro::cede_notself unless Coro::cede;	518	Coro::cede_notself;
		519	} else {
		520	EV::loop EV::LOOP_ONESHOT;
281	}	521	}
282	}	522	}
		523
		524	my $time = EV::time - $time;
		525
		526	$TICK_START += $time; # do not account sync jobs to server load
283		527
284	wantarray ? @res : $res[0]	528	wantarray ? @res : $res[0]
285	} else {	529	} else {
286	# we are in another coroutine, how wonderful, everything just works	530	# we are in another coroutine, how wonderful, everything just works
287		531
…		…
289	}	533	}
290	}	534	}
291		535
292	=item $coro = cf::async_ext { BLOCK }	536	=item $coro = cf::async_ext { BLOCK }
293		537
294	Like async, but this coro is automcatially being canceled when the	538	Like async, but this coro is automatically being canceled when the
295	extension calling this is being unloaded.	539	extension calling this is being unloaded.
296		540
297	=cut	541	=cut
298		542
299	sub async_ext(&) {	543	sub async_ext(&) {
…		…
307	$EXT_CORO{$coro+0} = $coro;	551	$EXT_CORO{$coro+0} = $coro;
308		552
309	$coro	553	$coro
310	}	554	}
311		555
312	sub write_runtime {	556	=item fork_call { }, $args
313	my $runtime = cf::localdir . "/runtime";
314		557
315	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	558	Executes the given code block with the given arguments in a seperate
316	or return;	559	process, returning the results. Everything must be serialisable with
		560	Coro::Storable. May, of course, block. Note that the executed sub may
		561	never block itself or use any form of event handling.
317		562
318	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	563	=cut
319	(aio_write $fh, 0, (length $value), $value, 0) <= 0
320	and return;
321		564
322	aio_fsync $fh	565	sub fork_call(&@) {
323	and return;	566	my ($cb, @args) = @_;
324		567
325	close $fh	568	# we seemingly have to make a local copy of the whole thing,
326	or return;	569	# otherwise perl prematurely frees the stuff :/
		570	# TODO: investigate and fix (likely this will be rather laborious)
327		571
328	aio_rename "$runtime~", $runtime	572	my @res = Coro::Util::fork_eval {
329	and return;	573	reset_signals;
		574	&$cb
		575	}, @args;
330		576
		577	wantarray ? @res : $res[-1]
		578	}
		579
		580	=item $coin = coin_from_name $name
		581
		582	=cut
		583
		584	our %coin_alias = (
		585	"silver" => "silvercoin",
		586	"silvercoin" => "silvercoin",
		587	"silvercoins" => "silvercoin",
		588	"gold" => "goldcoin",
		589	"goldcoin" => "goldcoin",
		590	"goldcoins" => "goldcoin",
		591	"platinum" => "platinacoin",
		592	"platinumcoin" => "platinacoin",
		593	"platinumcoins" => "platinacoin",
		594	"platina" => "platinacoin",
		595	"platinacoin" => "platinacoin",
		596	"platinacoins" => "platinacoin",
		597	"royalty" => "royalty",
		598	"royalties" => "royalty",
		599	);
		600
		601	sub coin_from_name($) {
		602	$coin_alias{$_[0]}
		603	? cf::arch::find $coin_alias{$_[0]}
		604	: undef
		605	}
		606
		607	=item $value = cf::db_get $family => $key
		608
		609	Returns a single value from the environment database.
		610
		611	=item cf::db_put $family => $key => $value
		612
		613	Stores the given C<$value> in the family. It can currently store binary
		614	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		615
		616	=item $db = cf::db_table "name"
		617
		618	Create and/or open a new database table. The string must not be "db" and must be unique
		619	within each server.
		620
		621	=cut
		622
		623	sub db_table($) {
		624	my ($name) = @_;
		625	my $db = BDB::db_create $DB_ENV;
		626
		627	eval {
		628	$db->set_flags (BDB::CHKSUM);
		629
		630	utf8::encode $name;
		631	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		632	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		633	cf::cleanup "db_open(db): $!" if $!;
		634	};
		635	cf::cleanup "db_open(db): $@" if $@;
		636
		637	$db
		638	}
		639
		640	our $DB;
		641
		642	sub db_init {
		643	cf::sync_job {
		644	$DB ||= db_table "db";
		645	};
		646	}
		647
		648	sub db_get($$) {
		649	my $key = "$_[0]/$_[1]";
		650
		651	cf::sync_job {
		652	BDB::db_get $DB, undef, $key, my $data;
		653
		654	$! ? ()
		655	: $data
331	1	656	}
		657	}
		658
		659	sub db_put($$$) {
		660	BDB::dbreq_pri 4;
		661	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		662	}
		663
		664	=item cf::cache $id => [$paths...], $processversion => $process
		665
		666	Generic caching function that returns the value of the resource $id,
		667	caching and regenerating as required.
		668
		669	This function can block.
		670
		671	=cut
		672
		673	sub cache {
		674	my ($id, $src, $processversion, $process) = @_;
		675
		676	my $meta =
		677	join "\x00",
		678	$processversion,
		679	map {
		680	aio_stat $_
		681	and Carp::croak "$_: $!";
		682
		683	($_, (stat _)[7,9])
		684	} @$src;
		685
		686	my $dbmeta = db_get cache => "$id/meta";
		687	if ($dbmeta ne $meta) {
		688	# changed, we may need to process
		689
		690	my @data;
		691	my $md5;
		692
		693	for (0 .. $#$src) {
		694	0 <= aio_load $src->[$_], $data[$_]
		695	or Carp::croak "$src->[$_]: $!";
		696	}
		697
		698	# if processing is expensive, check
		699	# checksum first
		700	if (1) {
		701	$md5 =
		702	join "\x00",
		703	$processversion,
		704	map {
		705	cf::cede_to_tick;
		706	($src->[$_], Digest::MD5::md5_hex $data[$_])
		707	} 0.. $#$src;
		708
		709
		710	my $dbmd5 = db_get cache => "$id/md5";
		711	if ($dbmd5 eq $md5) {
		712	db_put cache => "$id/meta", $meta;
		713
		714	return db_get cache => "$id/data";
		715	}
		716	}
		717
		718	my $t1 = Time::HiRes::time;
		719	my $data = $process->(\@data);
		720	my $t2 = Time::HiRes::time;
		721
		722	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		723
		724	db_put cache => "$id/data", $data;
		725	db_put cache => "$id/md5" , $md5;
		726	db_put cache => "$id/meta", $meta;
		727
		728	return $data;
		729	}
		730
		731	db_get cache => "$id/data"
		732	}
		733
		734	=item cf::datalog type => key => value, ...
		735
		736	Log a datalog packet of the given type with the given key-value pairs.
		737
		738	=cut
		739
		740	sub datalog($@) {
		741	my ($type, %kv) = @_;
		742	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
332	}	743	}
333		744
334	=back	745	=back
335		746
336	=cut	747	=cut
337		748
338	#############################################################################	749	#############################################################################
339		750
340	package cf::path;
341
342	sub new {
343	my ($class, $path, $base) = @_;
344
345	$path = $path->as_string if ref $path;
346
347	my $self = bless { }, $class;
348
349	# {... are special paths that are not touched
350	# ?xxx/... are special absolute paths
351	# ?random/... random maps
352	# /! non-realised random map exit
353	# /... normal maps
354	# ~/... per-player maps without a specific player (DO NOT USE)
355	# ~user/... per-player map of a specific user
356
357	if ($path =~ /^{/) {
358	# fine as it is
359	} elsif ($path =~ s{^\?random/}{}) {
360	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
361	$self->{random} = cf::from_json $data;
362	} else {
363	if ($path =~ s{^~([^/]+)?}{}) {
364	$self->{user_rel} = 1;
365
366	if (defined $1) {
367	$self->{user} = $1;
368	} elsif ($base =~ m{^~([^/]+)/}) {
369	$self->{user} = $1;
370	} else {
371	warn "cannot resolve user-relative path without user <$path,$base>\n";
372	}
373	} elsif ($path =~ /^\//) {
374	# already absolute
375	} else {
376	$base =~ s{[^/]+/?$}{};
377	return $class->new ("$base/$path");
378	}
379
380	for ($path) {
381	redo if s{/\.?/}{/};
382	redo if s{/[^/]+/\.\./}{/};
383	}
384	}
385
386	$self->{path} = $path;
387
388	$self
389	}
390
391	# the name / primary key / in-game path
392	sub as_string {
393	my ($self) = @_;
394
395	$self->{user_rel} ? "~$self->{user}$self->{path}"
396	: $self->{random} ? "?random/$self->{path}"
397	: $self->{path}
398	}
399
400	# the displayed name, this is a one way mapping
401	sub visible_name {
402	my ($self) = @_;
403
404	# if (my $rmp = $self->{random}) {
405	# # todo: be more intelligent about this
406	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
407	# } else {
408	$self->as_string
409	# }
410	}
411
412	# escape the /'s in the path
413	sub _escaped_path {
414	# ∕ is U+2215
415	(my $path = $_[0]{path}) =~ s/\//∕/g;
416	$path
417	}
418
419	# the original (read-only) location
420	sub load_path {
421	my ($self) = @_;
422
423	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
424	}
425
426	# the temporary/swap location
427	sub save_path {
428	my ($self) = @_;
429
430	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
431	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
432	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
433	}
434
435	# the unique path, might be eq to save_path
436	sub uniq_path {
437	my ($self) = @_;
438
439	$self->{user_rel} || $self->{random}
440	? undef
441	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
442	}
443
444	# return random map parameters, or undef
445	sub random_map_params {
446	my ($self) = @_;
447
448	$self->{random}
449	}
450
451	# this is somewhat ugly, but style maps do need special treatment
452	sub is_style_map {
453	$_[0]{path} =~ m{^/styles/}
454	}
455
456	package cf;
457
458	#############################################################################
459
460	=head2 ATTACHABLE OBJECTS	751	=head2 ATTACHABLE OBJECTS
461		752
462	Many objects in crossfire are so-called attachable objects. That means you can	753	Many objects in deliantra are so-called attachable objects. That means you can
463	attach callbacks/event handlers (a collection of which is called an "attachment")	754	attach callbacks/event handlers (a collection of which is called an "attachment")
464	to it. All such attachable objects support the following methods.	755	to it. All such attachable objects support the following methods.
465		756
466	In the following description, CLASS can be any of C<global>, C<object>	757	In the following description, CLASS can be any of C<global>, C<object>
467	C<player>, C<client> or C<map> (i.e. the attachable objects in	758	C<player>, C<client> or C<map> (i.e. the attachable objects in
468	crossfire+).	759	Deliantra).
469		760
470	=over 4	761	=over 4
471		762
472	=item $attachable->attach ($attachment, key => $value...)	763	=item $attachable->attach ($attachment, key => $value...)
473		764
…		…
517	=item cf::CLASS::attachment $name, ...	808	=item cf::CLASS::attachment $name, ...
518		809
519	Register an attachment by C<$name> through which attachable objects of the	810	Register an attachment by C<$name> through which attachable objects of the
520	given CLASS can refer to this attachment.	811	given CLASS can refer to this attachment.
521		812
522	Some classes such as crossfire maps and objects can specify attachments	813	Some classes such as deliantra maps and objects can specify attachments
523	that are attached at load/instantiate time, thus the need for a name.	814	that are attached at load/instantiate time, thus the need for a name.
524		815
525	These calls expect any number of the following handler/hook descriptions:	816	These calls expect any number of the following handler/hook descriptions:
526		817
527	=over 4	818	=over 4
…		…
587	our @CB_TYPE = (); # registry for type (cf-object class) based events	878	our @CB_TYPE = (); # registry for type (cf-object class) based events
588	our @CB_MAP = ();	879	our @CB_MAP = ();
589		880
590	my %attachment;	881	my %attachment;
591		882
		883	sub cf::attachable::thawer_merge {
		884	# simply override everything except _meta
		885	local $_[0]{_meta};
		886	%{$_[0]} = %{$_[1]};
		887	}
		888
592	sub _attach_cb($$$$) {	889	sub _attach_cb($$$$) {
593	my ($registry, $event, $prio, $cb) = @_;	890	my ($registry, $event, $prio, $cb) = @_;
594		891
595	use sort 'stable';	892	use sort 'stable';
596		893
…		…
630	$registry = $CB_TYPE[$object_type] ||= [];	927	$registry = $CB_TYPE[$object_type] ||= [];
631		928
632	} elsif ($type eq "subtype") {	929	} elsif ($type eq "subtype") {
633	defined $object_type or Carp::croak "subtype specified without type";	930	defined $object_type or Carp::croak "subtype specified without type";
634	my $object_subtype = shift @arg;	931	my $object_subtype = shift @arg;
635	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	932	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
636		933
637	} elsif ($type eq "package") {	934	} elsif ($type eq "package") {
638	my $pkg = shift @arg;	935	my $pkg = shift @arg;
639		936
640	while (my ($name, $id) = each %cb_id) {	937	while (my ($name, $id) = each %cb_id) {
…		…
669	_attach $registry, $klass, @attach;	966	_attach $registry, $klass, @attach;
670	}	967	}
671		968
672	$obj->{$name} = \%arg;	969	$obj->{$name} = \%arg;
673	} else {	970	} else {
674	warn "object uses attachment '$name' that is not available, postponing.\n";	971	warn "object uses attachment '$name' which is not available, postponing.\n";
675	}	972	}
676		973
677	$obj->{_attachment}{$name} = undef;	974	$obj->{_attachment}{$name} = undef;
678	}	975	}
679		976
…		…
681	if (ref $_[0]) {	978	if (ref $_[0]) {
682	_object_attach @_;	979	_object_attach @_;
683	} else {	980	} else {
684	_attach shift->_attach_registry, @_;	981	_attach shift->_attach_registry, @_;
685	}	982	}
		983	_recalc_want;
686	};	984	};
687		985
688	# all those should be optimised	986	# all those should be optimised
689	sub cf::attachable::detach {	987	sub cf::attachable::detach {
690	my ($obj, $name) = @_;	988	my ($obj, $name) = @_;
…		…
693	delete $obj->{_attachment}{$name};	991	delete $obj->{_attachment}{$name};
694	reattach ($obj);	992	reattach ($obj);
695	} else {	993	} else {
696	Carp::croak "cannot, currently, detach class attachments";	994	Carp::croak "cannot, currently, detach class attachments";
697	}	995	}
		996	_recalc_want;
698	};	997	};
699		998
700	sub cf::attachable::attached {	999	sub cf::attachable::attached {
701	my ($obj, $name) = @_;	1000	my ($obj, $name) = @_;
702		1001
…		…
717	";	1016	";
718	die if $@;	1017	die if $@;
719	}	1018	}
720		1019
721	our $override;	1020	our $override;
722	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1021	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
723		1022
724	sub override {	1023	sub override {
725	$override = 1;	1024	$override = 1;
726	@invoke_results = ();	1025	@INVOKE_RESULTS = (@_);
727	}	1026	}
728		1027
729	sub do_invoke {	1028	sub do_invoke {
730	my $event = shift;	1029	my $event = shift;
731	my $callbacks = shift;	1030	my $callbacks = shift;
732		1031
733	@invoke_results = ();	1032	@INVOKE_RESULTS = ();
734		1033
735	local $override;	1034	local $override;
736		1035
737	for (@$callbacks) {	1036	for (@$callbacks) {
738	eval { &{$_->[1]} };	1037	eval { &{$_->[1]} };
…		…
747	}	1046	}
748		1047
749	0	1048	0
750	}	1049	}
751		1050
752	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1051	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
753		1052
754	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1053	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
755		1054
756	Generate an object-specific event with the given arguments.	1055	Generate an object-specific event with the given arguments.
757		1056
758	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1057	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
759	removed in future versions), and there is no public API to access override	1058	removed in future versions), and there is no public API to access override
760	results (if you must, access C<@cf::invoke_results> directly).	1059	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
761		1060
762	=back	1061	=back
763		1062
764	=cut	1063	=cut
765		1064
766	#############################################################################	1065	#############################################################################
767	# object support	1066	# object support
		1067
		1068	sub _object_equal($$);
		1069	sub _object_equal($$) {
		1070	my ($a, $b) = @_;
		1071
		1072	return 0 unless (ref $a) eq (ref $b);
		1073
		1074	if ("HASH" eq ref $a) {
		1075	my @ka = keys %$a;
		1076	my @kb = keys %$b;
		1077
		1078	return 0 if @ka != @kb;
		1079
		1080	for (0 .. $#ka) {
		1081	return 0 unless $ka[$_] eq $kb[$_];
		1082	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1083	}
		1084
		1085	} elsif ("ARRAY" eq ref $a) {
		1086
		1087	return 0 if @$a != @$b;
		1088
		1089	for (0 .. $#$a) {
		1090	return 0 unless _object_equal $a->[$_], $b->[$_];
		1091	}
		1092
		1093	} elsif ($a ne $b) {
		1094	return 0;
		1095	}
		1096
		1097	1
		1098	}
		1099
		1100	our $SLOW_MERGES;#d#
		1101	sub _can_merge {
		1102	my ($ob1, $ob2) = @_;
		1103
		1104	++$SLOW_MERGES;#d#
		1105
		1106	# we do the slow way here
		1107	return _object_equal $ob1, $ob2
		1108	}
768		1109
769	sub reattach {	1110	sub reattach {
770	# basically do the same as instantiate, without calling instantiate	1111	# basically do the same as instantiate, without calling instantiate
771	my ($obj) = @_;	1112	my ($obj) = @_;
		1113
		1114	# no longer needed after getting rid of delete_package?
		1115	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
772		1116
773	my $registry = $obj->registry;	1117	my $registry = $obj->registry;
774		1118
775	@$registry = ();	1119	@$registry = ();
776		1120
…		…
791	cf::attachable->attach (	1135	cf::attachable->attach (
792	prio => -1000000,	1136	prio => -1000000,
793	on_instantiate => sub {	1137	on_instantiate => sub {
794	my ($obj, $data) = @_;	1138	my ($obj, $data) = @_;
795		1139
796	$data = from_json $data;	1140	$data = decode_json $data;
797		1141
798	for (@$data) {	1142	for (@$data) {
799	my ($name, $args) = @$_;	1143	my ($name, $args) = @$_;
800		1144
801	$obj->attach ($name, %{$args || {} });	1145	$obj->attach ($name, %{$args || {} });
…		…
817	sub object_freezer_save {	1161	sub object_freezer_save {
818	my ($filename, $rdata, $objs) = @_;	1162	my ($filename, $rdata, $objs) = @_;
819		1163
820	sync_job {	1164	sync_job {
821	if (length $$rdata) {	1165	if (length $$rdata) {
		1166	utf8::decode (my $decname = $filename);
822	warn sprintf "saving %s (%d,%d)\n",	1167	warn sprintf "saving %s (%d,%d)\n",
823	$filename, length $$rdata, scalar @$objs;	1168	$decname, length $$rdata, scalar @$objs;
824		1169
825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1170	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
826	chmod SAVE_MODE, $fh;	1171	aio_chmod $fh, SAVE_MODE;
827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1172	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1173	if ($cf::USE_FSYNC) {
		1174	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
828	aio_fsync $fh;	1175	aio_fsync $fh;
		1176	}
829	close $fh;	1177	aio_close $fh;
830		1178
831	if (@$objs) {	1179	if (@$objs) {
832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1180	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
833	chmod SAVE_MODE, $fh;	1181	aio_chmod $fh, SAVE_MODE;
834	my $data = Storable::nfreeze { version => 1, objs => $objs };	1182	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
835	aio_write $fh, 0, (length $data), $data, 0;	1183	aio_write $fh, 0, (length $data), $data, 0;
		1184	if ($cf::USE_FSYNC) {
		1185	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
836	aio_fsync $fh;	1186	aio_fsync $fh;
		1187	}
837	close $fh;	1188	aio_close $fh;
838	aio_rename "$filename.pst~", "$filename.pst";	1189	aio_rename "$filename.pst~", "$filename.pst";
839	}	1190	}
840	} else {	1191	} else {
841	aio_unlink "$filename.pst";	1192	aio_unlink "$filename.pst";
842	}	1193	}
843		1194
844	aio_rename "$filename~", $filename;	1195	aio_rename "$filename~", $filename;
		1196
		1197	$filename =~ s%/[^/]+$%%;
		1198	aio_pathsync $filename if $cf::USE_FSYNC;
845	} else {	1199	} else {
846	warn "FATAL: $filename~: $!\n";	1200	warn "unable to save objects: $filename~: $!\n";
847	}	1201	}
848	} else {	1202	} else {
849	aio_unlink $filename;	1203	aio_unlink $filename;
850	aio_unlink "$filename.pst";	1204	aio_unlink "$filename.pst";
851	}	1205	}
852	}	1206	};
853	}	1207	}
854		1208
855	sub object_freezer_as_string {	1209	sub object_freezer_as_string {
856	my ($rdata, $objs) = @_;	1210	my ($rdata, $objs) = @_;
857		1211
…		…
869	or return;	1223	or return;
870		1224
871	unless (aio_stat "$filename.pst") {	1225	unless (aio_stat "$filename.pst") {
872	(aio_load "$filename.pst", $av) >= 0	1226	(aio_load "$filename.pst", $av) >= 0
873	or return;	1227	or return;
		1228
874	$av = eval { (Storable::thaw $av)->{objs} };	1229	my $st = eval { Coro::Storable::thaw $av };
		1230	$av = $st->{objs};
875	}	1231	}
876		1232
		1233	utf8::decode (my $decname = $filename);
877	warn sprintf "loading %s (%d)\n",	1234	warn sprintf "loading %s (%d,%d)\n",
878	$filename, length $data, scalar @{$av || []};#d#	1235	$decname, length $data, scalar @{$av || []};
		1236
879	return ($data, $av);	1237	($data, $av)
880	}	1238	}
		1239
		1240	=head2 COMMAND CALLBACKS
		1241
		1242	=over 4
		1243
		1244	=cut
881		1245
882	#############################################################################	1246	#############################################################################
883	# command handling &c	1247	# command handling &c
884		1248
885	=item cf::register_command $name => \&callback($ob,$args);	1249	=item cf::register_command $name => \&callback($ob,$args);
…		…
898	push @{ $COMMAND{$name} }, [$caller, $cb];	1262	push @{ $COMMAND{$name} }, [$caller, $cb];
899	}	1263	}
900		1264
901	=item cf::register_extcmd $name => \&callback($pl,$packet);	1265	=item cf::register_extcmd $name => \&callback($pl,$packet);
902		1266
903	Register a callbackf ro execution when the client sends an extcmd packet.	1267	Register a callback for execution when the client sends an (synchronous)
		1268	extcmd packet. Ext commands will be processed in the order they are
		1269	received by the server, like other user commands. The first argument is
		1270	the logged-in player. Ext commands can only be processed after a player
		1271	has logged in successfully.
904		1272
905	If the callback returns something, it is sent back as if reply was being	1273	If the callback returns something, it is sent back as if reply was being
906	called.	1274	called.
907		1275
		1276	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1277
		1278	Register a callback for execution when the client sends an (asynchronous)
		1279	exticmd packet. Exti commands are processed by the server as soon as they
		1280	are received, i.e. out of order w.r.t. other commands. The first argument
		1281	is a client socket. Exti commands can be received anytime, even before
		1282	log-in.
		1283
		1284	If the callback returns something, it is sent back as if reply was being
		1285	called.
		1286
908	=cut	1287	=cut
909		1288
910	sub register_extcmd {	1289	sub register_extcmd {
911	my ($name, $cb) = @_;	1290	my ($name, $cb) = @_;
912		1291
913	my $caller = caller;
914	#warn "registering extcmd '$name' to '$caller'";
915
916	$EXTCMD{$name} = [$cb, $caller];	1292	$EXTCMD{$name} = $cb;
917	}	1293	}
		1294
		1295	sub register_exticmd {
		1296	my ($name, $cb) = @_;
		1297
		1298	$EXTICMD{$name} = $cb;
		1299	}
		1300
		1301	use File::Glob ();
918		1302
919	cf::player->attach (	1303	cf::player->attach (
920	on_command => sub {	1304	on_command => sub {
921	my ($pl, $name, $params) = @_;	1305	my ($pl, $name, $params) = @_;
922		1306
…		…
930	cf::override;	1314	cf::override;
931	},	1315	},
932	on_extcmd => sub {	1316	on_extcmd => sub {
933	my ($pl, $buf) = @_;	1317	my ($pl, $buf) = @_;
934		1318
935	my $msg = eval { from_json $buf };	1319	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
936		1320
937	if (ref $msg) {	1321	if (ref $msg) {
		1322	my ($type, $reply, @payload) =
		1323	"ARRAY" eq ref $msg
		1324	? @$msg
		1325	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1326
		1327	my @reply;
		1328
938	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1329	if (my $cb = $EXTCMD{$type}) {
939	if (my %reply = $cb->[0]->($pl, $msg)) {	1330	@reply = $cb->($pl, @payload);
940	$pl->ext_reply ($msg->{msgid}, %reply);
941	}
942	}	1331	}
		1332
		1333	$pl->ext_reply ($reply, @reply)
		1334	if $reply;
		1335
943	} else {	1336	} else {
944	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1337	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
945	}	1338	}
946		1339
947	cf::override;	1340	cf::override;
948	},	1341	},
949	);	1342	);
950		1343
951	sub register {	1344	# "readahead" all extensions
952	my ($base, $pkg) = @_;	1345	sub cache_extensions {
		1346	my $grp = IO::AIO::aio_group;
953		1347
954	#TODO	1348	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
955	}	1349	for (grep /\.ext$/, @{$_[0]}) {
		1350	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
		1351	}
		1352	};
956		1353
		1354	$grp
		1355	}
		1356
957	sub load_extension {	1357	sub load_extensions {
		1358	cf::sync_job {
		1359	my %todo;
		1360
		1361	for my $path (<$LIBDIR/*.ext>) {
		1362	next unless -r $path;
		1363
		1364	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1365	my $base = $1;
		1366	my $pkg = $1;
		1367	$pkg =~ s/[^[:word:]]/_/g;
		1368	$pkg = "ext::$pkg";
		1369
		1370	open my $fh, "<:utf8", $path
		1371	or die "$path: $!";
		1372
		1373	my $source = do { local $/; <$fh> };
		1374
		1375	my %ext = (
		1376	path => $path,
		1377	base => $base,
		1378	pkg => $pkg,
		1379	);
		1380
		1381	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1382	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1383
		1384	$ext{source} =
		1385	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1386	. "#line 1 \"$path\"\n{\n"
		1387	. $source
		1388	. "\n};\n1";
		1389
		1390	$todo{$base} = \%ext;
		1391	}
		1392
		1393	my %done;
		1394	while (%todo) {
		1395	my $progress;
		1396
		1397	while (my ($k, $v) = each %todo) {
		1398	for (split /,\s*/, $v->{meta}{depends}) {
		1399	goto skip
		1400	unless exists $done{$_};
		1401	}
		1402
		1403	warn "... loading '$k' into '$v->{pkg}'\n";
		1404
		1405	unless (eval $v->{source}) {
		1406	my $msg = $@ ? "$v->{path}: $@\n"
		1407	: "$v->{base}: extension inactive.\n";
		1408
		1409	if (exists $v->{meta}{mandatory}) {
		1410	warn $msg;
		1411	cf::cleanup "mandatory extension failed to load, exiting.";
		1412	}
		1413
		1414	warn $msg;
		1415	}
		1416
		1417	$done{$k} = delete $todo{$k};
		1418	push @EXTS, $v->{pkg};
		1419	$progress = 1;
		1420	}
		1421
		1422	skip:
		1423	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1424	unless $progress;
		1425	}
		1426	};
		1427	}
		1428
		1429	#############################################################################
		1430
		1431	=back
		1432
		1433	=head2 CORE EXTENSIONS
		1434
		1435	Functions and methods that extend core deliantra objects.
		1436
		1437	=cut
		1438
		1439	package cf::player;
		1440
		1441	use Coro::AIO;
		1442
		1443	=head3 cf::player
		1444
		1445	=over 4
		1446
		1447	=item cf::player::num_playing
		1448
		1449	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1450
		1451	=cut
		1452
		1453	sub num_playing {
		1454	scalar grep
		1455	$_->ob->map
		1456	&& !$_->hidden
		1457	&& !$_->ob->flag (cf::FLAG_WIZ),
		1458	cf::player::list
		1459	}
		1460
		1461	=item cf::player::find $login
		1462
		1463	Returns the given player object, loading it if necessary (might block).
		1464
		1465	=cut
		1466
		1467	sub playerdir($) {
		1468	"$PLAYERDIR/"
		1469	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1470	}
		1471
		1472	sub path($) {
		1473	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1474
		1475	(playerdir $login) . "/playerdata"
		1476	}
		1477
		1478	sub find_active($) {
		1479	$cf::PLAYER{$_[0]}
		1480	and $cf::PLAYER{$_[0]}->active
		1481	and $cf::PLAYER{$_[0]}
		1482	}
		1483
		1484	sub exists($) {
		1485	my ($login) = @_;
		1486
		1487	$cf::PLAYER{$login}
		1488	or !aio_stat path $login
		1489	}
		1490
		1491	sub find($) {
		1492	return $cf::PLAYER{$_[0]} || do {
		1493	my $login = $_[0];
		1494
		1495	my $guard = cf::lock_acquire "user_find:$login";
		1496
		1497	$cf::PLAYER{$_[0]} || do {
		1498	# rename old playerfiles to new ones
		1499	#TODO: remove when no longer required
		1500	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1501	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1502	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1503	aio_unlink +(playerdir $login) . "/$login.pl";
		1504
		1505	my $f = new_from_file cf::object::thawer path $login
		1506	or return;
		1507
		1508	my $pl = cf::player::load_pl $f
		1509	or return;
		1510
		1511	local $cf::PLAYER_LOADING{$login} = $pl;
		1512	$f->resolve_delayed_derefs;
		1513	$cf::PLAYER{$login} = $pl
		1514	}
		1515	}
		1516	}
		1517
		1518	sub save($) {
		1519	my ($pl) = @_;
		1520
		1521	return if $pl->{deny_save};
		1522
		1523	my $path = path $pl;
		1524	my $guard = cf::lock_acquire "user_save:$path";
		1525
		1526	return if $pl->{deny_save};
		1527
		1528	aio_mkdir playerdir $pl, 0770;
		1529	$pl->{last_save} = $cf::RUNTIME;
		1530
		1531	cf::get_slot 0.01;
		1532
		1533	$pl->save_pl ($path);
		1534	cf::cede_to_tick;
		1535	}
		1536
		1537	sub new($) {
		1538	my ($login) = @_;
		1539
		1540	my $self = create;
		1541
		1542	$self->ob->name ($login);
		1543	$self->{deny_save} = 1;
		1544
		1545	$cf::PLAYER{$login} = $self;
		1546
		1547	$self
		1548	}
		1549
		1550	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1551
		1552	=cut
		1553
		1554	sub send_msg {
		1555	my $ns = shift->ns
		1556	or return;
		1557	$ns->send_msg (@_);
		1558	}
		1559
		1560	=item $pl->quit_character
		1561
		1562	Nukes the player without looking back. If logged in, the connection will
		1563	be destroyed. May block for a long time.
		1564
		1565	=cut
		1566
		1567	sub quit_character {
		1568	my ($pl) = @_;
		1569
		1570	my $name = $pl->ob->name;
		1571
		1572	$pl->{deny_save} = 1;
		1573	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1574
		1575	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1576	$pl->deactivate;
		1577	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1578	$pl->ob->check_score;
		1579	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1580	$pl->ns->destroy if $pl->ns;
		1581
		1582	my $path = playerdir $pl;
		1583	my $temp = "$path~$cf::RUNTIME~deleting~";
		1584	aio_rename $path, $temp;
		1585	delete $cf::PLAYER{$pl->ob->name};
		1586	$pl->destroy;
		1587
		1588	my $prefix = qr<^~\Q$name\E/>;
		1589
		1590	# nuke player maps
		1591	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1592
		1593	IO::AIO::aio_rmtree $temp;
		1594	}
		1595
		1596	=item $pl->kick
		1597
		1598	Kicks a player out of the game. This destroys the connection.
		1599
		1600	=cut
		1601
		1602	sub kick {
		1603	my ($pl, $kicker) = @_;
		1604
		1605	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1606	$pl->killer ("kicked");
		1607	$pl->ns->destroy;
		1608	}
		1609
		1610	=item cf::player::list_logins
		1611
		1612	Returns am arrayref of all valid playernames in the system, can take a
		1613	while and may block, so not sync_job-capable, ever.
		1614
		1615	=cut
		1616
		1617	sub list_logins {
		1618	my $dirs = aio_readdir $PLAYERDIR
		1619	or return [];
		1620
		1621	my @logins;
		1622
		1623	for my $login (@$dirs) {
		1624	my $path = path $login;
		1625
		1626	# a .pst is a dead give-away for a valid player
		1627	# if no pst file found, open and chekc for blocked users
		1628	if (aio_stat "$path.pst") {
		1629	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1630	aio_read $fh, 0, 512, my $buf, 0 or next;
		1631	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1632	}
		1633
		1634	utf8::decode $login;
		1635	push @logins, $login;
		1636	}
		1637
		1638	\@logins
		1639	}
		1640
		1641	=item $player->maps
		1642
		1643	Returns an arrayref of map paths that are private for this
		1644	player. May block.
		1645
		1646	=cut
		1647
		1648	sub maps($) {
		1649	my ($pl) = @_;
		1650
		1651	$pl = ref $pl ? $pl->ob->name : $pl;
		1652
		1653	my $files = aio_readdir playerdir $pl
		1654	or return;
		1655
		1656	my @paths;
		1657
		1658	for (@$files) {
		1659	utf8::decode $_;
		1660	next if /\.(?:pl|pst)$/;
		1661	next unless /^$PATH_SEP/o;
		1662
		1663	push @paths, cf::map::normalise "~$pl/$_";
		1664	}
		1665
		1666	\@paths
		1667	}
		1668
		1669	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1670
		1671	Expand deliantra pod fragments into protocol xml.
		1672
		1673	=item $player->ext_reply ($msgid, @msg)
		1674
		1675	Sends an ext reply to the player.
		1676
		1677	=cut
		1678
		1679	sub ext_reply($$@) {
		1680	my ($self, $id, @msg) = @_;
		1681
		1682	$self->ns->ext_reply ($id, @msg)
		1683	}
		1684
		1685	=item $player->ext_msg ($type, @msg)
		1686
		1687	Sends an ext event to the client.
		1688
		1689	=cut
		1690
		1691	sub ext_msg($$@) {
		1692	my ($self, $type, @msg) = @_;
		1693
		1694	$self->ns->ext_msg ($type, @msg);
		1695	}
		1696
		1697	=head3 cf::region
		1698
		1699	=over 4
		1700
		1701	=cut
		1702
		1703	package cf::region;
		1704
		1705	=item cf::region::find_by_path $path
		1706
		1707	Tries to decuce the likely region for a map knowing only its path.
		1708
		1709	=cut
		1710
		1711	sub find_by_path($) {
958	my ($path) = @_;	1712	my ($path) = @_;
959		1713
960	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1714	my ($match, $specificity);
961	my $base = $1;
962	my $pkg = $1;
963	$pkg =~ s/[^[:word:]]/_/g;
964	$pkg = "ext::$pkg";
965		1715
966	warn "loading '$path' into '$pkg'\n";	1716	for my $region (list) {
967		1717	if ($region->{match} && $path =~ $region->{match}) {
968	open my $fh, "<:utf8", $path	1718	($match, $specificity) = ($region, $region->specificity)
969	or die "$path: $!";	1719	if $region->specificity > $specificity;
970		1720	}
971	my $source =
972	"package $pkg; use strict; use utf8;\n"
973	. "#line 1 \"$path\"\n{\n"
974	. (do { local $/; <$fh> })
975	. "\n};\n1";
976
977	eval $source
978	or die $@ ? "$path: $@\n"
979	: "extension disabled.\n";
980
981	push @exts, $pkg;
982	$ext_pkg{$base} = $pkg;
983
984	# no strict 'refs';
985	# @{"$pkg\::ISA"} = ext::;
986
987	register $base, $pkg;
988	}
989
990	sub unload_extension {
991	my ($pkg) = @_;
992
993	warn "removing extension $pkg\n";
994
995	# remove hooks
996	#TODO
997	# for my $idx (0 .. $#PLUGIN_EVENT) {
998	# delete $hook[$idx]{$pkg};
999	# }	1721	}
1000		1722
1001	# remove commands	1723	$match
1002	for my $name (keys %COMMAND) {
1003	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1004
1005	if (@cb) {
1006	$COMMAND{$name} = \@cb;
1007	} else {
1008	delete $COMMAND{$name};
1009	}
1010	}
1011
1012	# remove extcmds
1013	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1014	delete $EXTCMD{$name};
1015	}
1016
1017	if (my $cb = $pkg->can ("unload")) {
1018	eval {
1019	$cb->($pkg);
1020	1
1021	} or warn "$pkg unloaded, but with errors: $@";
1022	}
1023
1024	Symbol::delete_package $pkg;
1025	}
1026
1027	sub load_extensions {
1028	for my $ext (<$LIBDIR/*.ext>) {
1029	next unless -r $ext;
1030	eval {
1031	load_extension $ext;
1032	1
1033	} or warn "$ext not loaded: $@";
1034	}
1035	}
1036
1037	#############################################################################
1038	# load/save/clean perl data associated with a map
1039
1040	*cf::mapsupport::on_clean = sub {
1041	my ($map) = @_;
1042
1043	my $path = $map->tmpname;
1044	defined $path or return;
1045
1046	unlink "$path.pst";
1047	};
1048
1049	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1050
1051	#############################################################################
1052	# load/save perl data associated with player->ob objects
1053
1054	sub all_objects(@) {
1055	@_, map all_objects ($_->inv), @_
1056	}
1057
1058	# TODO: compatibility cruft, remove when no longer needed
1059	cf::player->attach (
1060	on_load => sub {
1061	my ($pl, $path) = @_;
1062
1063	for my $o (all_objects $pl->ob) {
1064	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1065	$o->set_ob_key_value ("_perl_data");
1066
1067	%$o = %{ Storable::thaw pack "H*", $value };
1068	}
1069	}
1070	},
1071	);
1072
1073	#############################################################################
1074
1075	=head2 CORE EXTENSIONS
1076
1077	Functions and methods that extend core crossfire objects.
1078
1079	=head3 cf::player
1080
1081	=over 4
1082
1083	=item cf::player::exists $login
1084
1085	Returns true when the given account exists.
1086
1087	=cut
1088
1089	sub cf::player::exists($) {
1090	cf::player::find $_[0]
1091	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1092	}
1093
1094	=item $player->ext_reply ($msgid, $msgtype, %msg)
1095
1096	Sends an ext reply to the player.
1097
1098	=cut
1099
1100	sub cf::player::ext_reply($$$%) {
1101	my ($self, $id, %msg) = @_;
1102
1103	$msg{msgid} = $id;
1104
1105	$self->send ("ext " . to_json \%msg);
1106	}	1724	}
1107		1725
1108	=back	1726	=back
1109
1110		1727
1111	=head3 cf::map	1728	=head3 cf::map
1112		1729
1113	=over 4	1730	=over 4
1114		1731
…		…
1117	package cf::map;	1734	package cf::map;
1118		1735
1119	use Fcntl;	1736	use Fcntl;
1120	use Coro::AIO;	1737	use Coro::AIO;
1121		1738
		1739	use overload
		1740	'""' => \&as_string,
		1741	fallback => 1;
		1742
1122	our $MAX_RESET = 3600;	1743	our $MAX_RESET = 3600;
1123	our $DEFAULT_RESET = 3000;	1744	our $DEFAULT_RESET = 3000;
1124		1745
1125	sub generate_random_map {	1746	sub generate_random_map {
1126	my ($path, $rmp) = @_;	1747	my ($self, $rmp) = @_;
		1748
		1749	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1127		1750
1128	# mit "rum" bekleckern, nicht	1751	# mit "rum" bekleckern, nicht
1129	cf::map::_create_random_map	1752	$self->_create_random_map (
1130	$path,
1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1753	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1754	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1755	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1134	$rmp->{exit_on_final_map},	1756	$rmp->{exit_on_final_map},
1135	$rmp->{xsize}, $rmp->{ysize},	1757	$rmp->{xsize}, $rmp->{ysize},
1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1758	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1759	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1138	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1760	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1139	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1761	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1140	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1762	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1141	(cf::region::find $rmp->{region})	1763	(cf::region::find $rmp->{region}), $rmp->{custom}
		1764	)
1142	}	1765	}
1143		1766
1144	# and all this just because we cannot iterate over	1767	=item cf::map->register ($regex, $prio)
1145	# all maps in C++...
1146	sub change_all_map_light {
1147	my ($change) = @_;
1148		1768
1149	$_->change_map_light ($change)	1769	Register a handler for the map path matching the given regex at the
1150	for grep $_->outdoor, values %cf::MAP;	1770	givne priority (higher is better, built-in handlers have priority 0, the
1151	}	1771	default).
1152		1772
1153	sub try_load_header($) {	1773	=cut
		1774
		1775	sub register {
		1776	my (undef, $regex, $prio) = @_;
		1777	my $pkg = caller;
		1778
		1779	no strict;
		1780	push @{"$pkg\::ISA"}, __PACKAGE__;
		1781
		1782	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1783	}
		1784
		1785	# also paths starting with '/'
		1786	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1787
		1788	sub thawer_merge {
		1789	my ($self, $merge) = @_;
		1790
		1791	# we have to keep some variables in memory intact
		1792	local $self->{path};
		1793	local $self->{load_path};
		1794
		1795	$self->SUPER::thawer_merge ($merge);
		1796	}
		1797
		1798	sub normalise {
1154	my ($path) = @_;	1799	my ($path, $base) = @_;
		1800
		1801	$path = "$path"; # make sure its a string
		1802
		1803	$path =~ s/\.map$//;
		1804
		1805	# map plan:
		1806	#
		1807	# /! non-realised random map exit (special hack!)
		1808	# {... are special paths that are not being touched
		1809	# ?xxx/... are special absolute paths
		1810	# ?random/... random maps
		1811	# /... normal maps
		1812	# ~user/... per-player map of a specific user
		1813
		1814	$path =~ s/$PATH_SEP/\//go;
		1815
		1816	# treat it as relative path if it starts with
		1817	# something that looks reasonable
		1818	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1819	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1820
		1821	$base =~ s{[^/]+/?$}{};
		1822	$path = "$base/$path";
		1823	}
		1824
		1825	for ($path) {
		1826	redo if s{//}{/};
		1827	redo if s{/\.?/}{/};
		1828	redo if s{/[^/]+/\.\./}{/};
		1829	}
		1830
		1831	$path
		1832	}
		1833
		1834	sub new_from_path {
		1835	my (undef, $path, $base) = @_;
		1836
		1837	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1838
		1839	$path = normalise $path, $base;
		1840
		1841	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1842	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1843	my $self = bless cf::map::new, $pkg;
		1844	$self->{path} = $path; $self->path ($path);
		1845	$self->init; # pass $1 etc.
		1846	return $self;
		1847	}
		1848	}
		1849
		1850	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1851	()
		1852	}
		1853
		1854	sub init {
		1855	my ($self) = @_;
		1856
		1857	$self
		1858	}
		1859
		1860	sub as_string {
		1861	my ($self) = @_;
		1862
		1863	"$self->{path}"
		1864	}
		1865
		1866	# the displayed name, this is a one way mapping
		1867	sub visible_name {
		1868	&as_string
		1869	}
		1870
		1871	# the original (read-only) location
		1872	sub load_path {
		1873	my ($self) = @_;
		1874
		1875	"$MAPDIR/$self->{path}.map"
		1876	}
		1877
		1878	# the temporary/swap location
		1879	sub save_path {
		1880	my ($self) = @_;
		1881
		1882	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1883	"$TMPDIR/$path.map"
		1884	}
		1885
		1886	# the unique path, undef == no special unique path
		1887	sub uniq_path {
		1888	my ($self) = @_;
		1889
		1890	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1891	"$UNIQUEDIR/$path"
		1892	}
		1893
		1894	sub decay_objects {
		1895	my ($self) = @_;
		1896
		1897	return if $self->{deny_reset};
		1898
		1899	$self->do_decay_objects;
		1900	}
		1901
		1902	sub unlink_save {
		1903	my ($self) = @_;
		1904
		1905	utf8::encode (my $save = $self->save_path);
		1906	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1907	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1908	}
		1909
		1910	sub load_header_from($) {
		1911	my ($self, $path) = @_;
1155		1912
1156	utf8::encode $path;	1913	utf8::encode $path;
1157	aio_open $path, O_RDONLY, 0	1914	my $f = new_from_file cf::object::thawer $path
1158	or return;	1915	or return;
1159		1916
1160	my $map = cf::map::new	1917	$self->_load_header ($f)
1161	or return;	1918	or return;
1162		1919
1163	# for better error messages only, will be overwritten	1920	local $MAP_LOADING{$self->{path}} = $self;
1164	$map->path ($path);	1921	$f->resolve_delayed_derefs;
1165		1922
1166	$map->load_header ($path)	1923	$self->{load_path} = $path;
		1924
		1925	1
		1926	}
		1927
		1928	sub load_header_orig {
		1929	my ($self) = @_;
		1930
		1931	$self->load_header_from ($self->load_path)
		1932	}
		1933
		1934	sub load_header_temp {
		1935	my ($self) = @_;
		1936
		1937	$self->load_header_from ($self->save_path)
		1938	}
		1939
		1940	sub prepare_temp {
		1941	my ($self) = @_;
		1942
		1943	$self->last_access ((delete $self->{last_access})
		1944	|| $cf::RUNTIME); #d#
		1945	# safety
		1946	$self->{instantiate_time} = $cf::RUNTIME
		1947	if $self->{instantiate_time} > $cf::RUNTIME;
		1948	}
		1949
		1950	sub prepare_orig {
		1951	my ($self) = @_;
		1952
		1953	$self->{load_original} = 1;
		1954	$self->{instantiate_time} = $cf::RUNTIME;
		1955	$self->last_access ($cf::RUNTIME);
		1956	$self->instantiate;
		1957	}
		1958
		1959	sub load_header {
		1960	my ($self) = @_;
		1961
		1962	if ($self->load_header_temp) {
		1963	$self->prepare_temp;
		1964	} else {
		1965	$self->load_header_orig
1167	or return;	1966	or return;
		1967	$self->prepare_orig;
		1968	}
1168		1969
1169	$map->{load_path} = $path;	1970	$self->{deny_reset} = 1
		1971	if $self->no_reset;
1170		1972
1171	$map	1973	$self->default_region (cf::region::find_by_path $self->{path})
		1974	unless $self->default_region;
		1975
		1976	1
1172	}	1977	}
1173		1978
1174	sub find;	1979	sub find;
1175	sub find {	1980	sub find {
1176	my ($path, $origin) = @_;	1981	my ($path, $origin) = @_;
1177		1982
1178	#warn "find<$path,$origin>\n";#d#
1179
1180	$path = new cf::path $path, $origin && $origin->path;	1983	$path = normalise $path, $origin && $origin->path;
1181	my $key = $path->as_string;
1182		1984
1183	cf::lock_wait "map_find:$key";	1985	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1184
1185	$cf::MAP{$key} || do {
1186	my $guard = cf::lock_acquire "map_find:$key";	1986	my $guard2 = cf::lock_acquire "map_find:$path";
1187		1987
1188	# do it the slow way	1988	$cf::MAP{$path} || do {
1189	my $map = try_load_header $path->save_path;	1989	my $map = new_from_path cf::map $path
1190
1191	Coro::cede;
1192
1193	if ($map) {
1194	$map->last_access ((delete $map->{last_access})
1195	|| $cf::RUNTIME); #d#
1196	# safety
1197	$map->{instantiate_time} = $cf::RUNTIME
1198	if $map->{instantiate_time} > $cf::RUNTIME;
1199	} else {
1200	if (my $rmp = $path->random_map_params) {
1201	$map = generate_random_map $key, $rmp;
1202	} else {
1203	$map = try_load_header $path->load_path;
1204	}
1205
1206	$map or return;	1990	or return;
1207		1991
1208	$map->{load_original} = 1;
1209	$map->{instantiate_time} = $cf::RUNTIME;
1210	$map->last_access ($cf::RUNTIME);
1211	$map->instantiate;
1212
1213	# per-player maps become, after loading, normal maps
1214	$map->per_player (0) if $path->{user_rel};
1215	}
1216
1217	$map->path ($key);
1218	$map->{path} = $path;
1219	$map->{last_save} = $cf::RUNTIME;	1992	$map->{last_save} = $cf::RUNTIME;
1220		1993
1221	Coro::cede;	1994	$map->load_header
		1995	or return;
1222		1996
1223	if ($map->should_reset) {	1997	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1998	# doing this can freeze the server in a sync job, obviously
		1999	#$cf::WAIT_FOR_TICK->wait;
		2000	undef $guard2;
		2001	undef $guard1;
1224	$map->reset;	2002	$map->reset;
1225	undef $guard;
1226	$map = find $path	2003	return find $path;
1227	or return;
1228	}	2004	}
1229		2005
1230	$cf::MAP{$key} = $map	2006	$cf::MAP{$path} = $map
1231	}	2007	}
1232	}	2008	}
		2009
		2010	sub pre_load { }
		2011	sub post_load { }
1233		2012
1234	sub load {	2013	sub load {
1235	my ($self) = @_;	2014	my ($self) = @_;
1236		2015
		2016	local $self->{deny_reset} = 1; # loading can take a long time
		2017
1237	my $path = $self->{path};	2018	my $path = $self->{path};
		2019
		2020	{
1238	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2021	my $guard = cf::lock_acquire "map_data:$path";
1239		2022
		2023	return unless $self->valid;
1240	return if $self->in_memory != cf::MAP_SWAPPED;	2024	return unless $self->in_memory == cf::MAP_SWAPPED;
1241		2025
1242	$self->in_memory (cf::MAP_LOADING);	2026	$self->in_memory (cf::MAP_LOADING);
1243		2027
1244	$self->alloc;	2028	$self->alloc;
1245	$self->load_objects ($self->{load_path}, 1)	2029
		2030	$self->pre_load;
		2031	cf::cede_to_tick;
		2032
		2033	my $f = new_from_file cf::object::thawer $self->{load_path};
		2034	$f->skip_block;
		2035	$self->_load_objects ($f)
1246	or return;	2036	or return;
1247		2037
1248	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2038	$self->post_load_original
1249	if delete $self->{load_original};	2039	if delete $self->{load_original};
1250		2040
1251	if (my $uniq = $path->uniq_path) {	2041	if (my $uniq = $self->uniq_path) {
1252	utf8::encode $uniq;	2042	utf8::encode $uniq;
1253	if (aio_open $uniq, O_RDONLY, 0) {	2043	unless (aio_stat $uniq) {
		2044	if (my $f = new_from_file cf::object::thawer $uniq) {
1254	$self->clear_unique_items;	2045	$self->clear_unique_items;
1255	$self->load_objects ($uniq, 0);	2046	$self->_load_objects ($f);
		2047	$f->resolve_delayed_derefs;
		2048	}
1256	}	2049	}
1257	}	2050	}
1258		2051
1259	Coro::cede;	2052	$f->resolve_delayed_derefs;
1260		2053
		2054	cf::cede_to_tick;
1261	# now do the right thing for maps	2055	# now do the right thing for maps
1262	$self->link_multipart_objects;	2056	$self->link_multipart_objects;
1263
1264	if ($self->{path}->is_style_map) {
1265	$self->{deny_save} = 1;
1266	$self->{deny_reset} = 1;
1267	} else {
1268	$self->fix_auto_apply;
1269	$self->decay_objects;
1270	$self->update_buttons;
1271	$self->set_darkness_map;
1272	$self->difficulty ($self->estimate_difficulty)	2057	$self->difficulty ($self->estimate_difficulty)
1273	unless $self->difficulty;	2058	unless $self->difficulty;
		2059	cf::cede_to_tick;
		2060
		2061	unless ($self->{deny_activate}) {
		2062	$self->decay_objects;
		2063	$self->fix_auto_apply;
		2064	$self->update_buttons;
		2065	cf::cede_to_tick;
1274	$self->activate;	2066	$self->activate;
1275	}	2067	}
1276		2068
1277	Coro::cede;	2069	$self->{last_save} = $cf::RUNTIME;
		2070	$self->last_access ($cf::RUNTIME);
1278		2071
1279	$self->in_memory (cf::MAP_IN_MEMORY);	2072	$self->in_memory (cf::MAP_ACTIVE);
		2073	}
		2074
		2075	$self->post_load;
		2076	}
		2077
		2078	sub customise_for {
		2079	my ($self, $ob) = @_;
		2080
		2081	return find "~" . $ob->name . "/" . $self->{path}
		2082	if $self->per_player;
		2083
		2084	# return find "?party/" . $ob->name . "/" . $self->{path}
		2085	# if $self->per_party;
		2086
		2087	$self
		2088	}
		2089
		2090	# find and load all maps in the 3x3 area around a map
		2091	sub load_neighbours {
		2092	my ($map) = @_;
		2093
		2094	my @neigh; # diagonal neighbours
		2095
		2096	for (0 .. 3) {
		2097	my $neigh = $map->tile_path ($_)
		2098	or next;
		2099	$neigh = find $neigh, $map
		2100	or next;
		2101	$neigh->load;
		2102
		2103	push @neigh,
		2104	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2105	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2106	}
		2107
		2108	for (grep defined $_->[0], @neigh) {
		2109	my ($path, $origin) = @$_;
		2110	my $neigh = find $path, $origin
		2111	or next;
		2112	$neigh->load;
		2113	}
1280	}	2114	}
1281		2115
1282	sub find_sync {	2116	sub find_sync {
1283	my ($path, $origin) = @_;	2117	my ($path, $origin) = @_;
1284		2118
1285	cf::sync_job { cf::map::find $path, $origin }	2119	cf::sync_job { find $path, $origin }
1286	}	2120	}
1287		2121
1288	sub do_load_sync {	2122	sub do_load_sync {
1289	my ($map) = @_;	2123	my ($map) = @_;
1290		2124
		2125	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2126	if $Coro::current == $Coro::main;
		2127
1291	cf::sync_job { $map->load };	2128	cf::sync_job { $map->load };
		2129	}
		2130
		2131	our %MAP_PREFETCH;
		2132	our $MAP_PREFETCHER = undef;
		2133
		2134	sub find_async {
		2135	my ($path, $origin, $load) = @_;
		2136
		2137	$path = normalise $path, $origin && $origin->{path};
		2138
		2139	if (my $map = $cf::MAP{$path}) {
		2140	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2141	}
		2142
		2143	$MAP_PREFETCH{$path} |= $load;
		2144
		2145	$MAP_PREFETCHER ||= cf::async {
		2146	$Coro::current->{desc} = "map prefetcher";
		2147
		2148	while (%MAP_PREFETCH) {
		2149	while (my ($k, $v) = each %MAP_PREFETCH) {
		2150	if (my $map = find $k) {
		2151	$map->load if $v;
		2152	}
		2153
		2154	delete $MAP_PREFETCH{$k};
		2155	}
		2156	}
		2157	undef $MAP_PREFETCHER;
		2158	};
		2159	$MAP_PREFETCHER->prio (6);
		2160
		2161	()
1292	}	2162	}
1293		2163
1294	sub save {	2164	sub save {
1295	my ($self) = @_;	2165	my ($self) = @_;
1296		2166
1297	my $lock = cf::lock_acquire "map_data:" . $self->path;	2167	my $lock = cf::lock_acquire "map_data:$self->{path}";
1298		2168
1299	$self->{last_save} = $cf::RUNTIME;	2169	$self->{last_save} = $cf::RUNTIME;
1300		2170
1301	return unless $self->dirty;	2171	return unless $self->dirty;
1302		2172
1303	my $save = $self->{path}->save_path; utf8::encode $save;	2173	my $save = $self->save_path; utf8::encode $save;
1304	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2174	my $uniq = $self->uniq_path; utf8::encode $uniq;
1305		2175
1306	$self->{load_path} = $save;	2176	$self->{load_path} = $save;
1307		2177
1308	return if $self->{deny_save};	2178	return if $self->{deny_save};
1309		2179
1310	local $self->{last_access} = $self->last_access;#d#	2180	local $self->{last_access} = $self->last_access;#d#
1311		2181
		2182	cf::async {
		2183	$Coro::current->{desc} = "map player save";
		2184	$_->contr->save for $self->players;
		2185	};
		2186
		2187	cf::get_slot 0.02;
		2188
1312	if ($uniq) {	2189	if ($uniq) {
1313	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2190	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1314	$self->save_objects ($uniq, cf::IO_UNIQUES);	2191	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1315	} else {	2192	} else {
1316	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2193	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1317	}	2194	}
1318	}	2195	}
1319		2196
1320	sub swap_out {	2197	sub swap_out {
1321	my ($self) = @_;	2198	my ($self) = @_;
1322		2199
1323	# save first because save cedes	2200	# save first because save cedes
1324	$self->save;	2201	$self->save;
1325		2202
1326	my $lock = cf::lock_acquire "map_data:" . $self->path;	2203	my $lock = cf::lock_acquire "map_data:$self->{path}";
1327		2204
1328	return if $self->players;	2205	return if $self->players;
1329	return if $self->in_memory != cf::MAP_IN_MEMORY;	2206	return if $self->in_memory != cf::MAP_ACTIVE;
1330	return if $self->{deny_save};	2207	return if $self->{deny_save};
1331		2208
		2209	$self->in_memory (cf::MAP_SWAPPED);
		2210
		2211	$self->deactivate;
		2212	$_->clear_links_to ($self) for values %cf::MAP;
1332	$self->clear;	2213	$self->clear;
1333	$self->in_memory (cf::MAP_SWAPPED);
1334	}	2214	}
1335		2215
1336	sub reset_at {	2216	sub reset_at {
1337	my ($self) = @_;	2217	my ($self) = @_;
1338		2218
1339	# TODO: safety, remove and allow resettable per-player maps	2219	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};
1341	return 1e99 if $self->{deny_reset};	2220	return 1e99 if $self->{deny_reset};
1342		2221
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2222	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2223	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		2224
…		…
1350	my ($self) = @_;	2229	my ($self) = @_;
1351		2230
1352	$self->reset_at <= $cf::RUNTIME	2231	$self->reset_at <= $cf::RUNTIME
1353	}	2232	}
1354		2233
1355	sub unlink_save {
1356	my ($self) = @_;
1357
1358	utf8::encode (my $save = $self->{path}->save_path);
1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361	}
1362
1363	sub rename {
1364	my ($self, $new_path) = @_;
1365
1366	$self->unlink_save;
1367
1368	delete $cf::MAP{$self->path};
1369	$self->{path} = new cf::path $new_path;
1370	$self->path ($self->{path}->as_string);
1371	$cf::MAP{$self->path} = $self;
1372
1373	$self->save;
1374	}
1375
1376	sub reset {	2234	sub reset {
1377	my ($self) = @_;	2235	my ($self) = @_;
1378		2236
1379	my $lock = cf::lock_acquire "map_data:" . $self->path;	2237	my $lock = cf::lock_acquire "map_data:$self->{path}";
1380		2238
1381	return if $self->players;	2239	return if $self->players;
1382	return if $self->{path}{user_rel};#d#
1383		2240
1384	warn "resetting map ", $self->path;#d#	2241	warn "resetting map ", $self->path, "\n";
		2242
		2243	$self->in_memory (cf::MAP_SWAPPED);
		2244
		2245	# need to save uniques path
		2246	unless ($self->{deny_save}) {
		2247	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2248
		2249	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2250	if $uniq;
		2251	}
1385		2252
1386	delete $cf::MAP{$self->path};	2253	delete $cf::MAP{$self->path};
1387		2254
		2255	$self->deactivate;
1388	$_->clear_links_to ($self) for values %cf::MAP;	2256	$_->clear_links_to ($self) for values %cf::MAP;
		2257	$self->clear;
1389		2258
1390	$self->unlink_save;	2259	$self->unlink_save;
1391	$self->destroy;	2260	$self->destroy;
1392	}	2261	}
1393		2262
1394	my $nuke_counter = "aaaa";	2263	my $nuke_counter = "aaaa";
1395		2264
1396	sub nuke {	2265	sub nuke {
1397	my ($self) = @_;	2266	my ($self) = @_;
1398		2267
		2268	{
		2269	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2270
		2271	delete $cf::MAP{$self->path};
		2272
		2273	$self->unlink_save;
		2274
		2275	bless $self, "cf::map";
		2276	delete $self->{deny_reset};
1399	$self->{deny_save} = 1;	2277	$self->{deny_save} = 1;
1400	$self->reset_timeout (1);	2278	$self->reset_timeout (1);
1401	$self->rename ("{nuke}/" . ($nuke_counter++));	2279	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2280
		2281	$cf::MAP{$self->path} = $self;
		2282	}
		2283
1402	$self->reset; # polite request, might not happen	2284	$self->reset; # polite request, might not happen
1403	}	2285	}
1404		2286
1405	sub customise_for {	2287	=item $maps = cf::map::tmp_maps
1406	my ($map, $ob) = @_;
1407		2288
1408	if ($map->per_player) {	2289	Returns an arrayref with all map paths of currently instantiated and saved
1409	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2290	maps. May block.
		2291
		2292	=cut
		2293
		2294	sub tmp_maps() {
1410	}	2295	[
1411		2296	map {
1412	$map	2297	utf8::decode $_;
		2298	/\.map$/
		2299	? normalise $_
		2300	: ()
		2301	} @{ aio_readdir $TMPDIR or [] }
		2302	]
1413	}	2303	}
1414		2304
1415	sub emergency_save {	2305	=item $maps = cf::map::random_maps
1416	my $freeze_guard = cf::freeze_mainloop;
1417		2306
1418	warn "enter emergency map save\n";	2307	Returns an arrayref with all map paths of currently instantiated and saved
		2308	random maps. May block.
1419		2309
1420	cf::sync_job {	2310	=cut
1421	warn "begin emergency map save\n";	2311
1422	$_->save for values %cf::MAP;	2312	sub random_maps() {
		2313	[
		2314	map {
		2315	utf8::decode $_;
		2316	/\.map$/
		2317	? normalise "?random/$_"
		2318	: ()
		2319	} @{ aio_readdir $RANDOMDIR or [] }
		2320	]
		2321	}
		2322
		2323	=item cf::map::unique_maps
		2324
		2325	Returns an arrayref of paths of all shared maps that have
		2326	instantiated unique items. May block.
		2327
		2328	=cut
		2329
		2330	sub unique_maps() {
		2331	[
		2332	map {
		2333	utf8::decode $_;
		2334	s/\.map$//; # TODO future compatibility hack
		2335	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2336	? ()
		2337	: normalise $_
		2338	} @{ aio_readdir $UNIQUEDIR or [] }
		2339	]
		2340	}
		2341
		2342	=back
		2343
		2344	=head3 cf::object
		2345
		2346	=cut
		2347
		2348	package cf::object;
		2349
		2350	=over 4
		2351
		2352	=item $ob->inv_recursive
		2353
		2354	Returns the inventory of the object I<and> their inventories, recursively,
		2355	but I<not> the object itself.
		2356
		2357	=cut
		2358
		2359	sub inv_recursive_;
		2360	sub inv_recursive_ {
		2361	map { $_, inv_recursive_ $_->inv } @_
		2362	}
		2363
		2364	sub inv_recursive {
		2365	inv_recursive_ inv $_[0]
		2366	}
		2367
		2368	=item $ref = $ob->ref
		2369
		2370	Creates and returns a persistent reference to an object that can be stored as a string.
		2371
		2372	=item $ob = cf::object::deref ($refstring)
		2373
		2374	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2375	even if the object actually exists. May block.
		2376
		2377	=cut
		2378
		2379	sub deref {
		2380	my ($ref) = @_;
		2381
		2382	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2383	my ($uuid, $name) = ($1, $2);
		2384	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2385	or return;
		2386	$pl->ob->uuid eq $uuid
		2387	or return;
		2388
		2389	$pl->ob
		2390	} else {
		2391	warn "$ref: cannot resolve object reference\n";
		2392	undef
1423	};	2393	}
1424
1425	warn "end emergency map save\n";
1426	}	2394	}
1427		2395
1428	package cf;	2396	package cf;
1429		2397
1430	=back	2398	=back
1431
1432		2399
1433	=head3 cf::object::player	2400	=head3 cf::object::player
1434		2401
1435	=over 4	2402	=over 4
1436		2403
…		…
1439	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2406	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1440	can be C<undef>. Does the right thing when the player is currently in a	2407	can be C<undef>. Does the right thing when the player is currently in a
1441	dialogue with the given NPC character.	2408	dialogue with the given NPC character.
1442		2409
1443	=cut	2410	=cut
		2411
		2412	our $SAY_CHANNEL = {
		2413	id => "say",
		2414	title => "Map",
		2415	reply => "say ",
		2416	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2417	};
		2418
		2419	our $CHAT_CHANNEL = {
		2420	id => "chat",
		2421	title => "Chat",
		2422	reply => "chat ",
		2423	tooltip => "Player chat and shouts, global to the server.",
		2424	};
1444		2425
1445	# rough implementation of a future "reply" method that works	2426	# rough implementation of a future "reply" method that works
1446	# with dialog boxes.	2427	# with dialog boxes.
1447	#TODO: the first argument must go, split into a $npc->reply_to ( method	2428	#TODO: the first argument must go, split into a $npc->reply_to ( method
1448	sub cf::object::player::reply($$$;$) {	2429	sub cf::object::player::reply($$$;$) {
…		…
1450		2431
1451	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2432	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1452		2433
1453	if ($self->{record_replies}) {	2434	if ($self->{record_replies}) {
1454	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2435	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2436
1455	} else {	2437	} else {
		2438	my $pl = $self->contr;
		2439
		2440	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2441	my $dialog = $pl->{npc_dialog};
		2442	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2443
		2444	} else {
1456	$msg = $npc->name . " says: $msg" if $npc;	2445	$msg = $npc->name . " says: $msg" if $npc;
1457	$self->message ($msg, $flags);	2446	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2447	}
1458	}	2448	}
		2449	}
		2450
		2451	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2452
		2453	=cut
		2454
		2455	sub cf::object::send_msg {
		2456	my $pl = shift->contr
		2457	or return;
		2458	$pl->send_msg (@_);
1459	}	2459	}
1460		2460
1461	=item $player_object->may ("access")	2461	=item $player_object->may ("access")
1462		2462
1463	Returns wether the given player is authorized to access resource "access"	2463	Returns wether the given player is authorized to access resource "access"
…		…
1476		2476
1477	=item $player_object->enter_link	2477	=item $player_object->enter_link
1478		2478
1479	Freezes the player and moves him/her to a special map (C<{link}>).	2479	Freezes the player and moves him/her to a special map (C<{link}>).
1480		2480
1481	The player should be reaosnably safe there for short amounts of time. You	2481	The player should be reasonably safe there for short amounts of time (e.g.
1482	I<MUST> call C<leave_link> as soon as possible, though.	2482	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2483	though, as the palyer cannot control the character while it is on the link
		2484	map.
		2485
		2486	Will never block.
1483		2487
1484	=item $player_object->leave_link ($map, $x, $y)	2488	=item $player_object->leave_link ($map, $x, $y)
1485		2489
1486	Moves the player out of the specila link map onto the given map. If the	2490	Moves the player out of the special C<{link}> map onto the specified
1487	map is not valid (or omitted), the player will be moved back to the	2491	map. If the map is not valid (or omitted), the player will be moved back
1488	location he/she was before the call to C<enter_link>, or, if that fails,	2492	to the location he/she was before the call to C<enter_link>, or, if that
1489	to the emergency map position.	2493	fails, to the emergency map position.
1490		2494
1491	Might block.	2495	Might block.
1492		2496
1493	=cut	2497	=cut
		2498
		2499	sub link_map {
		2500	unless ($LINK_MAP) {
		2501	$LINK_MAP = cf::map::find "{link}"
		2502	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2503	$LINK_MAP->load;
		2504	}
		2505
		2506	$LINK_MAP
		2507	}
1494		2508
1495	sub cf::object::player::enter_link {	2509	sub cf::object::player::enter_link {
1496	my ($self) = @_;	2510	my ($self) = @_;
1497		2511
1498	$self->deactivate_recursive;	2512	$self->deactivate_recursive;
1499		2513
1500	return if $self->map == $LINK_MAP;	2514	return if UNIVERSAL::isa $self->map, "ext::map_link";
1501		2515
1502	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2516	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1503	if $self->map;	2517	if $self->map && $self->map->{path} ne "{link}";
1504		2518
1505	$self->enter_map ($LINK_MAP, 20, 20);	2519	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1506	}	2520	}
1507		2521
1508	sub cf::object::player::leave_link {	2522	sub cf::object::player::leave_link {
1509	my ($self, $map, $x, $y) = @_;	2523	my ($self, $map, $x, $y) = @_;
		2524
		2525	return unless $self->contr->active;
1510		2526
1511	my $link_pos = delete $self->{_link_pos};	2527	my $link_pos = delete $self->{_link_pos};
1512		2528
1513	unless ($map) {	2529	unless ($map) {
1514	# restore original map position	2530	# restore original map position
…		…
1528	# use -1 or undef as default coordinates, not 0, 0	2544	# use -1 or undef as default coordinates, not 0, 0
1529	($x, $y) = ($map->enter_x, $map->enter_y)	2545	($x, $y) = ($map->enter_x, $map->enter_y)
1530	if $x <=0 && $y <= 0;	2546	if $x <=0 && $y <= 0;
1531		2547
1532	$map->load;	2548	$map->load;
		2549	$map->load_neighbours;
1533		2550
		2551	return unless $self->contr->active;
		2552
		2553	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2554	$self->enter_map ($map, $x, $y);
		2555
		2556	# only activate afterwards, to support waiting in hooks
1534	$self->activate_recursive;	2557	$self->activate_recursive;
1535	$self->enter_map ($map, $x, $y);
1536	}	2558	}
1537		2559
1538	cf::player->attach (	2560	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1539	on_logout => sub {
1540	my ($pl) = @_;
1541		2561
1542	# abort map switching before logout	2562	Moves the player to the given map-path and coordinates by first freezing
1543	if ($pl->ob->{_link_pos}) {	2563	her, loading and preparing them map, calling the provided $check callback
1544	cf::sync_job {	2564	that has to return the map if sucecssful, and then unfreezes the player on
1545	$pl->ob->leave_link	2565	the new (success) or old (failed) map position. In either case, $done will
1546	};	2566	be called at the end of this process.
1547	}
1548	},
1549	on_login => sub {
1550	my ($pl) = @_;
1551		2567
1552	# try to abort aborted map switching on player login :)	2568	Note that $check will be called with a potentially non-loaded map, so if
1553	# should happen only on crashes	2569	it needs a loaded map it has to call C<< ->load >>.
1554	if ($pl->ob->{_link_pos}) {
1555		2570
1556	$pl->ob->enter_link;
1557	(async {
1558	# we need this sleep as the login has a concurrent enter_exit running
1559	# and this sleep increases chances of the player not ending up in scorn
1560	$pl->ob->reply (undef,
1561	"There was an internal problem at your last logout, "
1562	. "the server will try to bring you to your intended destination in a second.",
1563	cf::NDI_RED);
1564	Coro::Timer::sleep 1;
1565	$pl->ob->leave_link;
1566	})->prio (2);
1567	}
1568	},
1569	);
1570
1571	=item $player_object->goto ($path, $x, $y)
1572
1573	=cut	2571	=cut
		2572
		2573	our $GOTOGEN;
1574		2574
1575	sub cf::object::player::goto {	2575	sub cf::object::player::goto {
1576	my ($self, $path, $x, $y) = @_;	2576	my ($self, $path, $x, $y, $check, $done) = @_;
		2577
		2578	# do generation counting so two concurrent goto's will be executed in-order
		2579	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1577		2580
1578	$self->enter_link;	2581	$self->enter_link;
1579		2582
1580	(async {	2583	(async {
1581	$path = new cf::path $path;	2584	$Coro::current->{desc} = "player::goto $path $x $y";
1582		2585
1583	my $map = cf::map::find $path->as_string;	2586	# *tag paths override both path and x|y
		2587	if ($path =~ /^\*(.*)$/) {
		2588	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2589	my $ob = $obs[rand @obs];
		2590
		2591	# see if we actually can go there
		2592	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2593	$ob = $obs[rand @obs];
		2594	} else {
		2595	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2596	}
		2597	# else put us there anyways for now #d#
		2598
		2599	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2600	} else {
		2601	($path, $x, $y) = (undef, undef, undef);
		2602	}
		2603	}
		2604
		2605	my $map = eval {
		2606	my $map = defined $path ? cf::map::find $path : undef;
		2607
		2608	if ($map) {
1584	$map = $map->customise_for ($self) if $map;	2609	$map = $map->customise_for ($self);
1585		2610	$map = $check->($map) if $check && $map;
1586	# warn "entering ", $map->path, " at ($x, $y)\n"	2611	} else {
1587	# if $map;
1588
1589	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2612	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2613	}
1590		2614
		2615	$map
		2616	};
		2617
		2618	if ($@) {
		2619	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2620	LOG llevError | logBacktrace, Carp::longmess $@;
		2621	}
		2622
		2623	if ($gen == $self->{_goto_generation}) {
		2624	delete $self->{_goto_generation};
1591	$self->leave_link ($map, $x, $y);	2625	$self->leave_link ($map, $x, $y);
		2626	}
		2627
		2628	$done->() if $done;
1592	})->prio (1);	2629	})->prio (1);
1593	}	2630	}
1594		2631
1595	=item $player_object->enter_exit ($exit_object)	2632	=item $player_object->enter_exit ($exit_object)
1596		2633
…		…
1598		2635
1599	sub parse_random_map_params {	2636	sub parse_random_map_params {
1600	my ($spec) = @_;	2637	my ($spec) = @_;
1601		2638
1602	my $rmp = { # defaults	2639	my $rmp = { # defaults
1603	xsize => 10,	2640	xsize => (cf::rndm 15, 40),
1604	ysize => 10,	2641	ysize => (cf::rndm 15, 40),
		2642	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2643	#layout => string,
1605	};	2644	};
1606		2645
1607	for (split /\n/, $spec) {	2646	for (split /\n/, $spec) {
1608	my ($k, $v) = split /\s+/, $_, 2;	2647	my ($k, $v) = split /\s+/, $_, 2;
1609		2648
…		…
1621	# that depends on the exit object	2660	# that depends on the exit object
1622		2661
1623	my $rmp = parse_random_map_params $exit->msg;	2662	my $rmp = parse_random_map_params $exit->msg;
1624		2663
1625	if ($exit->map) {	2664	if ($exit->map) {
1626	$rmp->{region} = $exit->map->region_name;	2665	$rmp->{region} = $exit->region->name;
1627	$rmp->{origin_map} = $exit->map->path;	2666	$rmp->{origin_map} = $exit->map->path;
1628	$rmp->{origin_x} = $exit->x;	2667	$rmp->{origin_x} = $exit->x;
1629	$rmp->{origin_y} = $exit->y;	2668	$rmp->{origin_y} = $exit->y;
		2669
		2670	$exit->map->touch;
1630	}	2671	}
1631		2672
1632	$rmp->{random_seed} ||= $exit->random_seed;	2673	$rmp->{random_seed} ||= $exit->random_seed;
1633		2674
1634	my $data = cf::to_json $rmp;	2675	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1635	my $md5 = Digest::MD5::md5_hex $data;	2676	my $md5 = Digest::MD5::md5_hex $data;
		2677	my $meta = "$RANDOMDIR/$md5.meta";
1636		2678
1637	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2679	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1638	aio_write $fh, 0, (length $data), $data, 0;	2680	aio_write $fh, 0, (length $data), $data, 0;
		2681	undef $fh;
		2682	aio_rename "$meta~", $meta;
1639		2683
		2684	my $slaying = "?random/$md5";
		2685
		2686	if ($exit->valid) {
1640	$exit->slaying ("?random/$md5");	2687	$exit->slaying ("?random/$md5");
1641	$exit->msg (undef);	2688	$exit->msg (undef);
		2689	}
1642	}	2690	}
1643	}	2691	}
1644		2692
1645	sub cf::object::player::enter_exit {	2693	sub cf::object::player::enter_exit {
1646	my ($self, $exit) = @_;	2694	my ($self, $exit) = @_;
…		…
1648	return unless $self->type == cf::PLAYER;	2696	return unless $self->type == cf::PLAYER;
1649		2697
1650	$self->enter_link;	2698	$self->enter_link;
1651		2699
1652	(async {	2700	(async {
1653	$self->deactivate_recursive; # just to be sure	2701	$Coro::current->{desc} = "enter_exit";
		2702
1654	unless (eval {	2703	unless (eval {
		2704	$self->deactivate_recursive; # just to be sure
		2705
		2706	# random map handling
		2707	{
		2708	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2709
1655	prepare_random_map $exit	2710	prepare_random_map $exit
1656	if $exit->slaying eq "/!";	2711	if $exit->slaying eq "/!";
		2712	}
1657		2713
1658	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2714	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1659	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2715	my $x = $exit->stats->hp;
		2716	my $y = $exit->stats->sp;
1660		2717
		2718	$self->goto ($map, $x, $y);
		2719
		2720	# if exit is damned, update players death & WoR home-position
		2721	$self->contr->savebed ($map, $x, $y)
		2722	if $exit->flag (cf::FLAG_DAMNED);
		2723
1661	1;	2724	1
1662	}) {	2725	}) {
1663	$self->message ("Something went wrong deep within the crossfire server. "	2726	$self->message ("Something went wrong deep within the deliantra server. "
1664	. "I'll try to bring you back to the map you were before. "	2727	. "I'll try to bring you back to the map you were before. "
1665	. "Please report this to the dungeon master",	2728	. "Please report this to the dungeon master!",
1666	cf::NDI_UNIQUE | cf::NDI_RED);	2729	cf::NDI_UNIQUE | cf::NDI_RED);
1667		2730
1668	warn "ERROR in enter_exit: $@";	2731	warn "ERROR in enter_exit: $@";
1669	$self->leave_link;	2732	$self->leave_link;
1670	}	2733	}
1671	})->prio (1);	2734	})->prio (1);
…		…
1684		2747
1685	sub cf::client::send_drawinfo {	2748	sub cf::client::send_drawinfo {
1686	my ($self, $text, $flags) = @_;	2749	my ($self, $text, $flags) = @_;
1687		2750
1688	utf8::encode $text;	2751	utf8::encode $text;
1689	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2752	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1690	}	2753	}
1691		2754
		2755	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2756
		2757	Send a drawinfo or msg packet to the client, formatting the msg for the
		2758	client if neccessary. C<$type> should be a string identifying the type of
		2759	the message, with C<log> being the default. If C<$color> is negative, suppress
		2760	the message unless the client supports the msg packet.
		2761
		2762	=cut
		2763
		2764	# non-persistent channels (usually the info channel)
		2765	our %CHANNEL = (
		2766	"c/identify" => {
		2767	id => "infobox",
		2768	title => "Identify",
		2769	reply => undef,
		2770	tooltip => "Items recently identified",
		2771	},
		2772	"c/examine" => {
		2773	id => "infobox",
		2774	title => "Examine",
		2775	reply => undef,
		2776	tooltip => "Signs and other items you examined",
		2777	},
		2778	"c/book" => {
		2779	id => "infobox",
		2780	title => "Book",
		2781	reply => undef,
		2782	tooltip => "The contents of a note or book",
		2783	},
		2784	"c/lookat" => {
		2785	id => "infobox",
		2786	title => "Look",
		2787	reply => undef,
		2788	tooltip => "What you saw there",
		2789	},
		2790	"c/who" => {
		2791	id => "infobox",
		2792	title => "Players",
		2793	reply => undef,
		2794	tooltip => "Shows players who are currently online",
		2795	},
		2796	"c/body" => {
		2797	id => "infobox",
		2798	title => "Body Parts",
		2799	reply => undef,
		2800	tooltip => "Shows which body parts you posess and are available",
		2801	},
		2802	"c/statistics" => {
		2803	id => "infobox",
		2804	title => "Statistics",
		2805	reply => undef,
		2806	tooltip => "Shows your primary statistics",
		2807	},
		2808	"c/skills" => {
		2809	id => "infobox",
		2810	title => "Skills",
		2811	reply => undef,
		2812	tooltip => "Shows your experience per skill and item power",
		2813	},
		2814	"c/shopitems" => {
		2815	id => "infobox",
		2816	title => "Shop Items",
		2817	reply => undef,
		2818	tooltip => "Shows the items currently for sale in this shop",
		2819	},
		2820	"c/resistances" => {
		2821	id => "infobox",
		2822	title => "Resistances",
		2823	reply => undef,
		2824	tooltip => "Shows your resistances",
		2825	},
		2826	"c/pets" => {
		2827	id => "infobox",
		2828	title => "Pets",
		2829	reply => undef,
		2830	tooltip => "Shows information abotu your pets/a specific pet",
		2831	},
		2832	"c/perceiveself" => {
		2833	id => "infobox",
		2834	title => "Perceive Self",
		2835	reply => undef,
		2836	tooltip => "You gained detailed knowledge about yourself",
		2837	},
		2838	"c/uptime" => {
		2839	id => "infobox",
		2840	title => "Uptime",
		2841	reply => undef,
		2842	tooltip => "How long the server has been running since last restart",
		2843	},
		2844	"c/mapinfo" => {
		2845	id => "infobox",
		2846	title => "Map Info",
		2847	reply => undef,
		2848	tooltip => "Information related to the maps",
		2849	},
		2850	"c/party" => {
		2851	id => "party",
		2852	title => "Party",
		2853	reply => "gsay ",
		2854	tooltip => "Messages and chat related to your party",
		2855	},
		2856	"c/death" => {
		2857	id => "death",
		2858	title => "Death",
		2859	reply => undef,
		2860	tooltip => "Reason for and more info about your most recent death",
		2861	},
		2862	"c/say" => $SAY_CHANNEL,
		2863	"c/chat" => $CHAT_CHANNEL,
		2864	);
		2865
		2866	sub cf::client::send_msg {
		2867	my ($self, $channel, $msg, $color, @extra) = @_;
		2868
		2869	$msg = $self->pl->expand_cfpod ($msg)
		2870	unless $color & cf::NDI_VERBATIM;
		2871
		2872	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2873
		2874	# check predefined channels, for the benefit of C
		2875	if ($CHANNEL{$channel}) {
		2876	$channel = $CHANNEL{$channel};
		2877
		2878	$self->ext_msg (channel_info => $channel);
		2879	$channel = $channel->{id};
		2880
		2881	} elsif (ref $channel) {
		2882	# send meta info to client, if not yet sent
		2883	unless (exists $self->{channel}{$channel->{id}}) {
		2884	$self->{channel}{$channel->{id}} = $channel;
		2885	$self->ext_msg (channel_info => $channel);
		2886	}
		2887
		2888	$channel = $channel->{id};
		2889	}
		2890
		2891	return unless @extra || length $msg;
		2892
		2893	# default colour, mask it out
		2894	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2895	if $color & cf::NDI_DEF;
		2896
		2897	my $pkt = "msg "
		2898	. $self->{json_coder}->encode (
		2899	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2900	);
		2901
		2902	# try lzf for large packets
		2903	$pkt = "lzf " . Compress::LZF::compress $pkt
		2904	if 1024 <= length $pkt and $self->{can_lzf};
		2905
		2906	# split very large packets
		2907	if (8192 < length $pkt and $self->{can_lzf}) {
		2908	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2909	$pkt = "frag";
		2910	}
		2911
		2912	$self->send_packet ($pkt);
		2913	}
		2914
		2915	=item $client->ext_msg ($type, @msg)
		2916
		2917	Sends an ext event to the client.
		2918
		2919	=cut
		2920
		2921	sub cf::client::ext_msg($$@) {
		2922	my ($self, $type, @msg) = @_;
		2923
		2924	if ($self->extcmd == 2) {
		2925	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2926	} elsif ($self->extcmd == 1) { # TODO: remove
		2927	push @msg, msgtype => "event_$type";
		2928	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2929	}
		2930	}
		2931
		2932	=item $client->ext_reply ($msgid, @msg)
		2933
		2934	Sends an ext reply to the client.
		2935
		2936	=cut
		2937
		2938	sub cf::client::ext_reply($$@) {
		2939	my ($self, $id, @msg) = @_;
		2940
		2941	if ($self->extcmd == 2) {
		2942	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2943	} elsif ($self->extcmd == 1) {
		2944	#TODO: version 1, remove
		2945	unshift @msg, msgtype => "reply", msgid => $id;
		2946	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2947	}
		2948	}
1692		2949
1693	=item $success = $client->query ($flags, "text", \&cb)	2950	=item $success = $client->query ($flags, "text", \&cb)
1694		2951
1695	Queues a query to the client, calling the given callback with	2952	Queues a query to the client, calling the given callback with
1696	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2953	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1697	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2954	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1698		2955
1699	Queries can fail, so check the return code. Or don't, as queries will become	2956	Queries can fail, so check the return code. Or don't, as queries will
1700	reliable at some point in the future.	2957	become reliable at some point in the future.
1701		2958
1702	=cut	2959	=cut
1703		2960
1704	sub cf::client::query {	2961	sub cf::client::query {
1705	my ($self, $flags, $text, $cb) = @_;	2962	my ($self, $flags, $text, $cb) = @_;
…		…
1713	utf8::encode $text;	2970	utf8::encode $text;
1714	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2971	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1715		2972
1716	$self->send_packet ($self->{query_queue}[0][0])	2973	$self->send_packet ($self->{query_queue}[0][0])
1717	if @{ $self->{query_queue} } == 1;	2974	if @{ $self->{query_queue} } == 1;
		2975
		2976	1
1718	}	2977	}
1719		2978
1720	cf::client->attach (	2979	cf::client->attach (
		2980	on_connect => sub {
		2981	my ($ns) = @_;
		2982
		2983	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2984	},
1721	on_reply => sub {	2985	on_reply => sub {
1722	my ($ns, $msg) = @_;	2986	my ($ns, $msg) = @_;
1723		2987
1724	# this weird shuffling is so that direct followup queries	2988	# this weird shuffling is so that direct followup queries
1725	# get handled first	2989	# get handled first
1726	my $queue = delete $ns->{query_queue}	2990	my $queue = delete $ns->{query_queue}
1727	or return; # be conservative, not sure how that can happen, but we saw a crash here	2991	or return; # be conservative, not sure how that can happen, but we saw a crash here
1728		2992
1729	(shift @$queue)->[1]->($msg);	2993	(shift @$queue)->[1]->($msg);
		2994	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1730		2995
1731	push @{ $ns->{query_queue} }, @$queue;	2996	push @{ $ns->{query_queue} }, @$queue;
1732		2997
1733	if (@{ $ns->{query_queue} } == @$queue) {	2998	if (@{ $ns->{query_queue} } == @$queue) {
1734	if (@$queue) {	2999	if (@$queue) {
…		…
1736	} else {	3001	} else {
1737	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3002	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1738	}	3003	}
1739	}	3004	}
1740	},	3005	},
		3006	on_exticmd => sub {
		3007	my ($ns, $buf) = @_;
		3008
		3009	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3010
		3011	if (ref $msg) {
		3012	my ($type, $reply, @payload) =
		3013	"ARRAY" eq ref $msg
		3014	? @$msg
		3015	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3016
		3017	my @reply;
		3018
		3019	if (my $cb = $EXTICMD{$type}) {
		3020	@reply = $cb->($ns, @payload);
		3021	}
		3022
		3023	$ns->ext_reply ($reply, @reply)
		3024	if $reply;
		3025
		3026	} else {
		3027	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3028	}
		3029
		3030	cf::override;
		3031	},
1741	);	3032	);
1742		3033
1743	=item $client->async (\&cb)	3034	=item $client->async (\&cb)
1744		3035
1745	Create a new coroutine, running the specified callback. The coroutine will	3036	Create a new coroutine, running the specified callback. The coroutine will
…		…
1786	our $safe = new Safe "safe";	3077	our $safe = new Safe "safe";
1787	our $safe_hole = new Safe::Hole;	3078	our $safe_hole = new Safe::Hole;
1788		3079
1789	$SIG{FPE} = 'IGNORE';	3080	$SIG{FPE} = 'IGNORE';
1790		3081
1791	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3082	$safe->permit_only (Opcode::opset qw(
		3083	:base_core :base_mem :base_orig :base_math
		3084	grepstart grepwhile mapstart mapwhile
		3085	sort time
		3086	));
1792		3087
1793	# here we export the classes and methods available to script code	3088	# here we export the classes and methods available to script code
1794		3089
1795	=pod	3090	=pod
1796		3091
1797	The following fucntions and emthods are available within a safe environment:	3092	The following functions and methods are available within a safe environment:
1798		3093
1799	cf::object contr pay_amount pay_player map	3094	cf::object
		3095	contr pay_amount pay_player map x y force_find force_add destroy
		3096	insert remove name archname title slaying race decrease split
		3097	value
		3098
1800	cf::object::player player	3099	cf::object::player
1801	cf::player peaceful	3100	player
1802	cf::map trigger	3101
		3102	cf::player
		3103	peaceful
		3104
		3105	cf::map
		3106	trigger
1803		3107
1804	=cut	3108	=cut
1805		3109
1806	for (	3110	for (
1807	["cf::object" => qw(contr pay_amount pay_player map)],	3111	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3112	insert remove inv nrof name archname title slaying race
		3113	decrease split destroy change_exp value msg lore send_msg)],
1808	["cf::object::player" => qw(player)],	3114	["cf::object::player" => qw(player)],
1809	["cf::player" => qw(peaceful)],	3115	["cf::player" => qw(peaceful send_msg)],
1810	["cf::map" => qw(trigger)],	3116	["cf::map" => qw(trigger)],
1811	) {	3117	) {
1812	no strict 'refs';	3118	no strict 'refs';
1813	my ($pkg, @funs) = @$_;	3119	my ($pkg, @funs) = @$_;
1814	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3120	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1831	my ($code, %vars) = @_;	3137	my ($code, %vars) = @_;
1832		3138
1833	my $qcode = $code;	3139	my $qcode = $code;
1834	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3140	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1835	$qcode =~ s/\n/\\n/g;	3141	$qcode =~ s/\n/\\n/g;
		3142
		3143	%vars = (_dummy => 0) unless %vars;
1836		3144
1837	local $_;	3145	local $_;
1838	local @safe::cf::_safe_eval_args = values %vars;	3146	local @safe::cf::_safe_eval_args = values %vars;
1839		3147
1840	my $eval =	3148	my $eval =
…		…
1883	=back	3191	=back
1884		3192
1885	=cut	3193	=cut
1886		3194
1887	#############################################################################	3195	#############################################################################
		3196	# the server's init and main functions
1888		3197
1889	=head2 EXTENSION DATABASE SUPPORT	3198	sub load_facedata($) {
		3199	my ($path) = @_;
1890		3200
1891	Crossfire maintains a very simple database for extension use. It can	3201	# HACK to clear player env face cache, we need some signal framework
1892	currently store anything that can be serialised using Storable, which	3202	# for this (global event?)
1893	excludes objects.	3203	%ext::player_env::MUSIC_FACE_CACHE = ();
1894		3204
1895	The parameter C<$family> should best start with the name of the extension	3205	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1896	using it, it should be unique.
1897		3206
1898	=over 4	3207	warn "loading facedata from $path\n";
1899		3208
1900	=item $hashref = cf::db_get $family	3209	my $facedata;
		3210	0 < aio_load $path, $facedata
		3211	or die "$path: $!";
1901		3212
1902	Return a hashref for use by the extension C<$family>, which can be	3213	$facedata = Coro::Storable::thaw $facedata;
1903	modified. After modifications, you have to call C<cf::db_dirty> or
1904	C<cf::db_sync>.
1905		3214
1906	=item $value = cf::db_get $family => $key	3215	$facedata->{version} == 2
		3216	or cf::cleanup "$path: version mismatch, cannot proceed.";
1907		3217
1908	Returns a single value from the database	3218	# patch in the exptable
1909		3219	$facedata->{resource}{"res/exp_table"} = {
1910	=item cf::db_put $family => $hashref	3220	type => FT_RSRC,
1911		3221	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1912	Stores the given family hashref into the database. Updates are delayed, if
1913	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1914
1915	=item cf::db_put $family => $key => $value
1916
1917	Stores the given C<$value> in the family hash. Updates are delayed, if you
1918	want the data to be synced to disk immediately, use C<cf::db_sync>.
1919
1920	=item cf::db_dirty
1921
1922	Marks the database as dirty, to be updated at a later time.
1923
1924	=item cf::db_sync
1925
1926	Immediately write the database to disk I<if it is dirty>.
1927
1928	=cut
1929
1930	our $DB;
1931
1932	{
1933	my $path = cf::localdir . "/database.pst";
1934
1935	sub db_load() {
1936	$DB = stat $path ? Storable::retrieve $path : { };
1937	}
1938
1939	my $pid;
1940
1941	sub db_save() {
1942	waitpid $pid, 0 if $pid;
1943	if (0 == ($pid = fork)) {
1944	$DB->{_meta}{version} = 1;
1945	Storable::nstore $DB, "$path~";
1946	rename "$path~", $path;
1947	cf::_exit 0 if defined $pid;
1948	}
1949	}
1950
1951	my $dirty;
1952
1953	sub db_sync() {
1954	db_save if $dirty;
1955	undef $dirty;
1956	}
1957
1958	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1959	db_sync;
1960	});	3222	};
		3223	cf::cede_to_tick;
1961		3224
1962	sub db_dirty() {
1963	$dirty = 1;
1964	$idle->start;
1965	}	3225	{
		3226	my $faces = $facedata->{faceinfo};
1966		3227
1967	sub db_get($;$) {	3228	while (my ($face, $info) = each %$faces) {
1968	@_ >= 2	3229	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1969	? $DB->{$_[0]}{$_[1]}
1970	: ($DB->{$_[0]} ||= { })
1971	}
1972		3230
1973	sub db_put($$;$) {	3231	cf::face::set_visibility $idx, $info->{visibility};
1974	if (@_ >= 3) {	3232	cf::face::set_magicmap $idx, $info->{magicmap};
1975	$DB->{$_[0]}{$_[1]} = $_[2];	3233	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1976	} else {	3234	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1977	$DB->{$_[0]} = $_[1];
1978	}
1979	db_dirty;
1980	}
1981		3235
1982	cf::global->attach (	3236	cf::cede_to_tick;
1983	prio => 10000,
1984	on_cleanup => sub {
1985	db_sync;
1986	},	3237	}
1987	);
1988	}
1989		3238
1990	#############################################################################	3239	while (my ($face, $info) = each %$faces) {
1991	# the server's main()	3240	next unless $info->{smooth};
1992		3241
1993	sub cfg_load {	3242	my $idx = cf::face::find $face
		3243	or next;
		3244
		3245	if (my $smooth = cf::face::find $info->{smooth}) {
		3246	cf::face::set_smooth $idx, $smooth;
		3247	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3248	} else {
		3249	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3250	}
		3251
		3252	cf::cede_to_tick;
		3253	}
		3254	}
		3255
		3256	{
		3257	my $anims = $facedata->{animinfo};
		3258
		3259	while (my ($anim, $info) = each %$anims) {
		3260	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3261	cf::cede_to_tick;
		3262	}
		3263
		3264	cf::anim::invalidate_all; # d'oh
		3265	}
		3266
		3267	{
		3268	# TODO: for gcfclient pleasure, we should give resources
		3269	# that gcfclient doesn't grok a >10000 face index.
		3270	my $res = $facedata->{resource};
		3271
		3272	while (my ($name, $info) = each %$res) {
		3273	if (defined $info->{type}) {
		3274	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3275	my $data;
		3276
		3277	if ($info->{type} & 1) {
		3278	# prepend meta info
		3279
		3280	my $meta = $enc->encode ({
		3281	name => $name,
		3282	%{ $info->{meta} || {} },
		3283	});
		3284
		3285	$data = pack "(w/a*)*", $meta, $info->{data};
		3286	} else {
		3287	$data = $info->{data};
		3288	}
		3289
		3290	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3291	cf::face::set_type $idx, $info->{type};
		3292	} else {
		3293	$RESOURCE{$name} = $info;
		3294	}
		3295
		3296	cf::cede_to_tick;
		3297	}
		3298	}
		3299
		3300	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3301
		3302	1
		3303	}
		3304
		3305	cf::global->attach (on_resource_update => sub {
		3306	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3307	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3308
		3309	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3310	my $sound = $soundconf->{compat}[$_]
		3311	or next;
		3312
		3313	my $face = cf::face::find "sound/$sound->[1]";
		3314	cf::sound::set $sound->[0] => $face;
		3315	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3316	}
		3317
		3318	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3319	my $face = cf::face::find "sound/$v";
		3320	cf::sound::set $k => $face;
		3321	}
		3322	}
		3323	});
		3324
		3325	register_exticmd fx_want => sub {
		3326	my ($ns, $want) = @_;
		3327
		3328	while (my ($k, $v) = each %$want) {
		3329	$ns->fx_want ($k, $v);
		3330	}
		3331	};
		3332
		3333	sub load_resource_file($) {
		3334	my $guard = lock_acquire "load_resource_file";
		3335
		3336	my $status = load_resource_file_ $_[0];
		3337	get_slot 0.1, 100;
		3338	cf::arch::commit_load;
		3339
		3340	$status
		3341	}
		3342
		3343	sub reload_regions {
		3344	# HACK to clear player env face cache, we need some signal framework
		3345	# for this (global event?)
		3346	%ext::player_env::MUSIC_FACE_CACHE = ();
		3347
		3348	load_resource_file "$MAPDIR/regions"
		3349	or die "unable to load regions file\n";
		3350
		3351	for (cf::region::list) {
		3352	$_->{match} = qr/$_->{match}/
		3353	if exists $_->{match};
		3354	}
		3355	}
		3356
		3357	sub reload_facedata {
		3358	load_facedata "$DATADIR/facedata"
		3359	or die "unable to load facedata\n";
		3360	}
		3361
		3362	sub reload_archetypes {
		3363	load_resource_file "$DATADIR/archetypes"
		3364	or die "unable to load archetypes\n";
		3365	}
		3366
		3367	sub reload_treasures {
		3368	load_resource_file "$DATADIR/treasures"
		3369	or die "unable to load treasurelists\n";
		3370	}
		3371
		3372	sub reload_resources {
		3373	warn "reloading resource files...\n";
		3374
		3375	reload_facedata;
		3376	reload_archetypes;
		3377	reload_regions;
		3378	reload_treasures;
		3379
		3380	warn "finished reloading resource files\n";
		3381	}
		3382
		3383	sub reload_config {
1994	open my $fh, "<:utf8", cf::confdir . "/config"	3384	open my $fh, "<:utf8", "$CONFDIR/config"
1995	or return;	3385	or return;
1996		3386
1997	local $/;	3387	local $/;
1998	*CFG = YAML::Syck::Load <$fh>;	3388	*CFG = YAML::Load <$fh>;
1999		3389
2000	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3390	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2001		3391
2002	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3392	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2003	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3393	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2004		3394
2005	if (exists $CFG{mlockall}) {	3395	if (exists $CFG{mlockall}) {
2006	eval {	3396	eval {
2007	$CFG{mlockall} ? &mlockall : &munlockall	3397	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2008	and die "WARNING: m(un)lockall failed: $!\n";	3398	and die "WARNING: m(un)lockall failed: $!\n";
2009	};	3399	};
2010	warn $@ if $@;	3400	warn $@ if $@;
2011	}	3401	}
2012	}	3402	}
2013		3403
		3404	sub pidfile() {
		3405	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3406	or die "$PIDFILE: $!";
		3407	flock $fh, &Fcntl::LOCK_EX
		3408	or die "$PIDFILE: flock: $!";
		3409	$fh
		3410	}
		3411
		3412	# make sure only one server instance is running at any one time
		3413	sub atomic {
		3414	my $fh = pidfile;
		3415
		3416	my $pid = <$fh>;
		3417	kill 9, $pid if $pid > 0;
		3418
		3419	seek $fh, 0, 0;
		3420	print $fh $$;
		3421	}
		3422
		3423	sub main_loop {
		3424	warn "EV::loop starting\n";
		3425	if (1) {
		3426	EV::loop;
		3427	}
		3428	warn "EV::loop returned\n";
		3429	goto &main_loop unless $REALLY_UNLOOP;
		3430	}
		3431
2014	sub main {	3432	sub main {
		3433	cf::init_globals; # initialise logging
		3434
		3435	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3436	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3437	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3438	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3439
		3440	cf::init_experience;
		3441	cf::init_anim;
		3442	cf::init_attackmess;
		3443	cf::init_dynamic;
		3444
		3445	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3446
2015	# we must not ever block the main coroutine	3447	# we must not ever block the main coroutine
2016	local $Coro::idle = sub {	3448	local $Coro::idle = sub {
2017	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3449	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2018	async { Event::one_event };	3450	(async {
		3451	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3452	EV::loop EV::LOOP_ONESHOT;
		3453	})->prio (Coro::PRIO_MAX);
2019	};	3454	};
2020		3455
2021	cfg_load;	3456	evthread_start IO::AIO::poll_fileno;
2022	db_load;	3457
		3458	cf::sync_job {
		3459	reload_resources;
		3460	reload_config;
		3461	db_init;
		3462
		3463	cf::load_settings;
		3464	cf::load_materials;
		3465	cf::init_uuid;
		3466	cf::init_signals;
		3467	cf::init_commands;
		3468	cf::init_skills;
		3469
		3470	cf::init_beforeplay;
		3471
		3472	atomic;
		3473
2023	load_extensions;	3474	load_extensions;
2024	Event::loop;	3475
		3476	utime time, time, $RUNTIMEFILE;
		3477
		3478	# no (long-running) fork's whatsoever before this point(!)
		3479	use POSIX ();
		3480	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3481
		3482	(pop @POST_INIT)->(0) while @POST_INIT;
		3483	};
		3484
		3485	main_loop;
2025	}	3486	}
2026		3487
2027	#############################################################################	3488	#############################################################################
2028	# initialisation	3489	# initialisation and cleanup
2029		3490
		3491	# install some emergency cleanup handlers
		3492	BEGIN {
		3493	our %SIGWATCHER = ();
		3494	for my $signal (qw(INT HUP TERM)) {
		3495	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3496	cf::cleanup "SIG$signal";
		3497	};
		3498	}
		3499	}
		3500
		3501	sub write_runtime_sync {
		3502	# first touch the runtime file to show we are still running:
		3503	# the fsync below can take a very very long time.
		3504
		3505	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3506
		3507	my $guard = cf::lock_acquire "write_runtime";
		3508
		3509	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3510	or return;
		3511
		3512	my $value = $cf::RUNTIME + 90 + 10;
		3513	# 10 is the runtime save interval, for a monotonic clock
		3514	# 60 allows for the watchdog to kill the server.
		3515
		3516	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3517	and return;
		3518
		3519	# always fsync - this file is important
		3520	aio_fsync $fh
		3521	and return;
		3522
		3523	# touch it again to show we are up-to-date
		3524	aio_utime $fh, undef, undef;
		3525
		3526	close $fh
		3527	or return;
		3528
		3529	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3530	and return;
		3531
		3532	warn "runtime file written.\n";
		3533
		3534	1
		3535	}
		3536
		3537	our $uuid_lock;
		3538	our $uuid_skip;
		3539
		3540	sub write_uuid_sync($) {
		3541	$uuid_skip ||= $_[0];
		3542
		3543	return if $uuid_lock;
		3544	local $uuid_lock = 1;
		3545
		3546	my $uuid = "$LOCALDIR/uuid";
		3547
		3548	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3549	or return;
		3550
		3551	my $value = uuid_seq uuid_cur;
		3552
		3553	unless ($value) {
		3554	warn "cowardly refusing to write zero uuid value!\n";
		3555	return;
		3556	}
		3557
		3558	my $value = uuid_str $value + $uuid_skip;
		3559	$uuid_skip = 0;
		3560
		3561	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3562	and return;
		3563
		3564	# always fsync - this file is important
		3565	aio_fsync $fh
		3566	and return;
		3567
		3568	close $fh
		3569	or return;
		3570
		3571	aio_rename "$uuid~", $uuid
		3572	and return;
		3573
		3574	warn "uuid file written ($value).\n";
		3575
		3576	1
		3577
		3578	}
		3579
		3580	sub write_uuid($$) {
		3581	my ($skip, $sync) = @_;
		3582
		3583	$sync ? write_uuid_sync $skip
		3584	: async { write_uuid_sync $skip };
		3585	}
		3586
		3587	sub emergency_save() {
		3588	my $freeze_guard = cf::freeze_mainloop;
		3589
		3590	warn "emergency_perl_save: enter\n";
		3591
		3592	cf::sync_job {
		3593	# this is a trade-off: we want to be very quick here, so
		3594	# save all maps without fsync, and later call a global sync
		3595	# (which in turn might be very very slow)
		3596	local $USE_FSYNC = 0;
		3597
		3598	# use a peculiar iteration method to avoid tripping on perl
		3599	# refcount bugs in for. also avoids problems with players
		3600	# and maps saved/destroyed asynchronously.
		3601	warn "emergency_perl_save: begin player save\n";
		3602	for my $login (keys %cf::PLAYER) {
		3603	my $pl = $cf::PLAYER{$login} or next;
		3604	$pl->valid or next;
		3605	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3606	$pl->save;
		3607	}
		3608	warn "emergency_perl_save: end player save\n";
		3609
		3610	warn "emergency_perl_save: begin map save\n";
		3611	for my $path (keys %cf::MAP) {
		3612	my $map = $cf::MAP{$path} or next;
		3613	$map->valid or next;
		3614	$map->save;
		3615	}
		3616	warn "emergency_perl_save: end map save\n";
		3617
		3618	warn "emergency_perl_save: begin database checkpoint\n";
		3619	BDB::db_env_txn_checkpoint $DB_ENV;
		3620	warn "emergency_perl_save: end database checkpoint\n";
		3621
		3622	warn "emergency_perl_save: begin write uuid\n";
		3623	write_uuid_sync 1;
		3624	warn "emergency_perl_save: end write uuid\n";
		3625	};
		3626
		3627	warn "emergency_perl_save: starting sync()\n";
		3628	IO::AIO::aio_sync sub {
		3629	warn "emergency_perl_save: finished sync()\n";
		3630	};
		3631
		3632	warn "emergency_perl_save: leave\n";
		3633	}
		3634
		3635	sub post_cleanup {
		3636	my ($make_core) = @_;
		3637
		3638	warn Carp::longmess "post_cleanup backtrace"
		3639	if $make_core;
		3640
		3641	my $fh = pidfile;
		3642	unlink $PIDFILE if <$fh> == $$;
		3643	}
		3644
		3645	# a safer delete_package, copied from Symbol
		3646	sub clear_package($) {
		3647	my $pkg = shift;
		3648
		3649	# expand to full symbol table name if needed
		3650	unless ($pkg =~ /^main::.*::$/) {
		3651	$pkg = "main$pkg" if $pkg =~ /^::/;
		3652	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3653	$pkg .= '::' unless $pkg =~ /::$/;
		3654	}
		3655
		3656	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3657	my $stem_symtab = *{$stem}{HASH};
		3658
		3659	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3660	or return;
		3661
		3662	# clear all symbols
		3663	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3664	for my $name (keys %$leaf_symtab) {
		3665	_gv_clear *{"$pkg$name"};
		3666	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3667	}
		3668	warn "cleared package $pkg\n";#d#
		3669	}
		3670
2030	sub reload() {	3671	sub do_reload_perl() {
2031	# can/must only be called in main	3672	# can/must only be called in main
2032	if ($Coro::current != $Coro::main) {	3673	if ($Coro::current != $Coro::main) {
2033	warn "can only reload from main coroutine\n";	3674	warn "can only reload from main coroutine";
2034	return;	3675	return;
2035	}	3676	}
2036		3677
		3678	return if $RELOAD++;
		3679
		3680	my $t1 = EV::time;
		3681
		3682	while ($RELOAD) {
2037	warn "reloading...";	3683	warn "reloading...";
2038		3684
2039	my $guard = freeze_mainloop;	3685	warn "entering sync_job";
		3686
		3687	cf::sync_job {
		3688	cf::write_runtime_sync; # external watchdog should not bark
2040	cf::emergency_save;	3689	cf::emergency_save;
		3690	cf::write_runtime_sync; # external watchdog should not bark
2041		3691
2042	eval {	3692	warn "syncing database to disk";
		3693	BDB::db_env_txn_checkpoint $DB_ENV;
		3694
2043	# if anything goes wrong in here, we should simply crash as we already saved	3695	# if anything goes wrong in here, we should simply crash as we already saved
2044		3696
2045	# cancel all watchers	3697	warn "flushing outstanding aio requests";
2046	for (Event::all_watchers) {	3698	while (IO::AIO::nreqs || BDB::nreqs) {
2047	$_->cancel if $_->data & WF_AUTOCANCEL;	3699	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2048	}
2049
2050	# cancel all extension coros
2051	$_->cancel for values %EXT_CORO;
2052	%EXT_CORO = ();
2053
2054	# unload all extensions
2055	for (@exts) {
2056	warn "unloading <$_>";
2057	unload_extension $_;
2058	}
2059
2060	# unload all modules loaded from $LIBDIR
2061	while (my ($k, $v) = each %INC) {
2062	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2063
2064	warn "removing <$k>";
2065	delete $INC{$k};
2066
2067	$k =~ s/\.pm$//;
2068	$k =~ s/\//::/g;
2069
2070	if (my $cb = $k->can ("unload_module")) {
2071	$cb->();
2072	}	3700	}
2073		3701
2074	Symbol::delete_package $k;	3702	warn "cancelling all extension coros";
		3703	$_->cancel for values %EXT_CORO;
		3704	%EXT_CORO = ();
		3705
		3706	warn "removing commands";
		3707	%COMMAND = ();
		3708
		3709	warn "removing ext/exti commands";
		3710	%EXTCMD = ();
		3711	%EXTICMD = ();
		3712
		3713	warn "unloading/nuking all extensions";
		3714	for my $pkg (@EXTS) {
		3715	warn "... unloading $pkg";
		3716
		3717	if (my $cb = $pkg->can ("unload")) {
		3718	eval {
		3719	$cb->($pkg);
		3720	1
		3721	} or warn "$pkg unloaded, but with errors: $@";
		3722	}
		3723
		3724	warn "... clearing $pkg";
		3725	clear_package $pkg;
2075	}	3726	}
2076		3727
2077	# sync database to disk	3728	warn "unloading all perl modules loaded from $LIBDIR";
2078	cf::db_sync;	3729	while (my ($k, $v) = each %INC) {
2079	IO::AIO::flush;	3730	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2080		3731
		3732	warn "... unloading $k";
		3733	delete $INC{$k};
		3734
		3735	$k =~ s/\.pm$//;
		3736	$k =~ s/\//::/g;
		3737
		3738	if (my $cb = $k->can ("unload_module")) {
		3739	$cb->();
		3740	}
		3741
		3742	clear_package $k;
		3743	}
		3744
2081	# get rid of safe::, as good as possible	3745	warn "getting rid of safe::, as good as possible";
2082	Symbol::delete_package "safe::$_"	3746	clear_package "safe::$_"
2083	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3747	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2084		3748
2085	# remove register_script_function callbacks	3749	warn "unloading cf.pm \"a bit\"";
2086	# TODO
2087
2088	# unload cf.pm "a bit"
2089	delete $INC{"cf.pm"};	3750	delete $INC{"cf.pm"};
		3751	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2090		3752
2091	# don't, removes xs symbols, too,	3753	# don't, removes xs symbols, too,
2092	# and global variables created in xs	3754	# and global variables created in xs
2093	#Symbol::delete_package __PACKAGE__;	3755	#clear_package __PACKAGE__;
2094		3756
2095	# reload cf.pm	3757	warn "unload completed, starting to reload now";
		3758
2096	warn "reloading cf.pm";	3759	warn "reloading cf.pm";
2097	require cf;	3760	require cf;
2098	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3761	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2099		3762
2100	# load config and database again	3763	warn "loading config and database again";
2101	cf::cfg_load;	3764	cf::reload_config;
2102	cf::db_load;
2103		3765
2104	# load extensions
2105	warn "load extensions";	3766	warn "loading extensions";
2106	cf::load_extensions;	3767	cf::load_extensions;
2107		3768
2108	# reattach attachments to objects	3769	if ($REATTACH_ON_RELOAD) {
		3770	warn "reattaching attachments to objects/players";
		3771	_global_reattach; # objects, sockets
		3772	warn "reattaching attachments to maps";
		3773	reattach $_ for values %MAP;
		3774	warn "reattaching attachments to players";
		3775	reattach $_ for values %PLAYER;
		3776	}
		3777
		3778	warn "running post_init jobs";
		3779	(pop @POST_INIT)->(1) while @POST_INIT;
		3780
		3781	warn "leaving sync_job";
		3782
		3783	1
		3784	} or do {
		3785	warn $@;
		3786	cf::cleanup "error while reloading, exiting.";
		3787	};
		3788
2109	warn "reattach";	3789	warn "reloaded";
2110	_global_reattach;	3790	--$RELOAD;
		3791	}
		3792
		3793	$t1 = EV::time - $t1;
		3794	warn "reload completed in ${t1}s\n";
		3795	};
		3796
		3797	our $RELOAD_WATCHER; # used only during reload
		3798
		3799	sub reload_perl() {
		3800	# doing reload synchronously and two reloads happen back-to-back,
		3801	# coro crashes during coro_state_free->destroy here.
		3802
		3803	$RELOAD_WATCHER ||= cf::async {
		3804	Coro::AIO::aio_wait cache_extensions;
		3805
		3806	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3807	do_reload_perl;
		3808	undef $RELOAD_WATCHER;
		3809	};
2111	};	3810	};
2112
2113	if ($@) {
2114	warn $@;
2115	warn "error while reloading, exiting.";
2116	exit 1;
2117	}
2118
2119	warn "reloaded successfully";
2120	};
2121
2122	#############################################################################
2123
2124	unless ($LINK_MAP) {
2125	$LINK_MAP = cf::map::new;
2126
2127	$LINK_MAP->width (41);
2128	$LINK_MAP->height (41);
2129	$LINK_MAP->alloc;
2130	$LINK_MAP->path ("{link}");
2131	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2132	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2133
2134	# dirty hack because... archetypes are not yet loaded
2135	Event->timer (
2136	after => 2,
2137	cb => sub {
2138	$_[0]->w->cancel;
2139
2140	# provide some exits "home"
2141	my $exit = cf::object::new "exit";
2142
2143	$exit->slaying ($EMERGENCY_POSITION->[0]);
2144	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2145	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2146
2147	$LINK_MAP->insert ($exit->clone, 19, 19);
2148	$LINK_MAP->insert ($exit->clone, 19, 20);
2149	$LINK_MAP->insert ($exit->clone, 19, 21);
2150	$LINK_MAP->insert ($exit->clone, 20, 19);
2151	$LINK_MAP->insert ($exit->clone, 20, 21);
2152	$LINK_MAP->insert ($exit->clone, 21, 19);
2153	$LINK_MAP->insert ($exit->clone, 21, 20);
2154	$LINK_MAP->insert ($exit->clone, 21, 21);
2155
2156	$exit->destroy;
2157	});
2158
2159	$LINK_MAP->{deny_save} = 1;
2160	$LINK_MAP->{deny_reset} = 1;
2161
2162	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2163	}	3811	}
2164
2165	register "<global>", __PACKAGE__;
2166		3812
2167	register_command "reload" => sub {	3813	register_command "reload" => sub {
2168	my ($who, $arg) = @_;	3814	my ($who, $arg) = @_;
2169		3815
2170	if ($who->flag (FLAG_WIZ)) {	3816	if ($who->flag (FLAG_WIZ)) {
2171	$who->message ("start of reload.");
2172	reload;
2173	$who->message ("end of reload.");	3817	$who->message ("reloading server.");
		3818	async {
		3819	$Coro::current->{desc} = "perl_reload";
		3820	reload_perl;
		3821	};
2174	}	3822	}
2175	};	3823	};
2176		3824
2177	unshift @INC, $LIBDIR;	3825	unshift @INC, $LIBDIR;
2178		3826
2179	$TICK_WATCHER = Event->timer (	3827	my $bug_warning = 0;
2180	reentrant => 0,	3828
2181	prio => 0,	3829	our @WAIT_FOR_TICK;
2182	at => $NEXT_TICK || $TICK,	3830	our @WAIT_FOR_TICK_BEGIN;
2183	data => WF_AUTOCANCEL,	3831
2184	cb => sub {	3832	sub wait_for_tick {
		3833	return if tick_inhibit || $Coro::current == $Coro::main;
		3834
		3835	my $signal = new Coro::Signal;
		3836	push @WAIT_FOR_TICK, $signal;
		3837	$signal->wait;
		3838	}
		3839
		3840	sub wait_for_tick_begin {
		3841	return if tick_inhibit || $Coro::current == $Coro::main;
		3842
		3843	my $signal = new Coro::Signal;
		3844	push @WAIT_FOR_TICK_BEGIN, $signal;
		3845	$signal->wait;
		3846	}
		3847
		3848	sub tick {
		3849	if ($Coro::current != $Coro::main) {
		3850	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3851	unless ++$bug_warning > 10;
		3852	return;
		3853	}
		3854
2185	cf::server_tick; # one server iteration	3855	cf::server_tick; # one server iteration
2186	$RUNTIME += $TICK;
2187	$NEXT_TICK += $TICK;
2188		3856
2189	# if we are delayed by four ticks or more, skip them all	3857	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2190	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3858	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2191		3859	Coro::async_pool {
2192	$TICK_WATCHER->at ($NEXT_TICK);	3860	$Coro::current->{desc} = "runtime saver";
2193	$TICK_WATCHER->start;
2194	},
2195	);
2196
2197	IO::AIO::max_poll_time $TICK * 0.2;
2198
2199	Event->io (
2200	fd => IO::AIO::poll_fileno,
2201	poll => 'r',
2202	prio => 5,
2203	data => WF_AUTOCANCEL,
2204	cb => \&IO::AIO::poll_cb,
2205	);
2206
2207	Event->timer (
2208	data => WF_AUTOCANCEL,
2209	after => 0,
2210	interval => 10,
2211	cb => sub {
2212	(Coro::unblock_sub {
2213	write_runtime	3861	write_runtime_sync
2214	or warn "ERROR: unable to write runtime file: $!";	3862	or warn "ERROR: unable to write runtime file: $!";
2215	})->();	3863	};
2216	},	3864	}
2217	);	3865
		3866	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3867	$sig->send;
		3868	}
		3869	while (my $sig = shift @WAIT_FOR_TICK) {
		3870	$sig->send;
		3871	}
		3872
		3873	$LOAD = ($NOW - $TICK_START) / $TICK;
		3874	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3875
		3876	if (0) {
		3877	if ($NEXT_TICK) {
		3878	my $jitter = $TICK_START - $NEXT_TICK;
		3879	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3880	warn "jitter $JITTER\n";#d#
		3881	}
		3882	}
		3883	}
		3884
		3885	{
		3886	# configure BDB
		3887
		3888	BDB::min_parallel 8;
		3889	BDB::max_poll_reqs $TICK * 0.1;
		3890	$AnyEvent::BDB::WATCHER->priority (1);
		3891
		3892	unless ($DB_ENV) {
		3893	$DB_ENV = BDB::db_env_create;
		3894	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3895	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3896	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3897	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3898	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3899
		3900	cf::sync_job {
		3901	eval {
		3902	BDB::db_env_open
		3903	$DB_ENV,
		3904	$BDBDIR,
		3905	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3906	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3907	0666;
		3908
		3909	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3910	};
		3911
		3912	cf::cleanup "db_env_open(db): $@" if $@;
		3913	};
		3914	}
		3915
		3916	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3917	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3918	};
		3919	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3920	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3921	};
		3922	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3923	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3924	};
		3925	}
		3926
		3927	{
		3928	# configure IO::AIO
		3929
		3930	IO::AIO::min_parallel 8;
		3931	IO::AIO::max_poll_time $TICK * 0.1;
		3932	undef $AnyEvent::AIO::WATCHER;
		3933	}
		3934
		3935	my $_log_backtrace;
		3936
		3937	sub _log_backtrace {
		3938	my ($msg, @addr) = @_;
		3939
		3940	$msg =~ s/\n//;
		3941
		3942	# limit the # of concurrent backtraces
		3943	if ($_log_backtrace < 2) {
		3944	++$_log_backtrace;
		3945	my $perl_bt = Carp::longmess $msg;
		3946	async {
		3947	$Coro::current->{desc} = "abt $msg";
		3948
		3949	my @bt = fork_call {
		3950	@addr = map { sprintf "%x", $_ } @addr;
		3951	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3952	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3953	or die "addr2line: $!";
		3954
		3955	my @funcs;
		3956	my @res = <$fh>;
		3957	chomp for @res;
		3958	while (@res) {
		3959	my ($func, $line) = splice @res, 0, 2, ();
		3960	push @funcs, "[$func] $line";
		3961	}
		3962
		3963	@funcs
		3964	};
		3965
		3966	LOG llevInfo, "[ABT] $perl_bt\n";
		3967	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3968	LOG llevInfo, "[ABT] $_\n" for @bt;
		3969	--$_log_backtrace;
		3970	};
		3971	} else {
		3972	LOG llevInfo, "[ABT] $msg\n";
		3973	LOG llevInfo, "[ABT] [suppressed]\n";
		3974	}
		3975	}
		3976
		3977	# load additional modules
		3978	require "cf/$_.pm" for @EXTRA_MODULES;
2218		3979
2219	END { cf::emergency_save }	3980	END { cf::emergency_save }
2220		3981
2221	1	3982	1
2222		3983

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